every

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Test whether every element in an ndarray is truthy.

Installation

npm install @stdlib/ndarray-base-every

Usage

var every = require( '@stdlib/ndarray-base-every' );

every( arrays )

Tests whether every element in an ndarray is truthy.

var Float64Array = require( '@stdlib/array-float64' );

// Create a data buffer:
var xbuf = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );

// Define the shape of the input array:
var shape = [ 3, 1, 2 ];

// Define the array strides:
var sx = [ 4, 4, 1 ];

// Define the index offset:
var ox = 0;

// Create the input ndarray-like object:
var x = {
    'dtype': 'float64',
    'data': xbuf,
    'shape': shape,
    'strides': sx,
    'offset': ox,
    'order': 'row-major'
};

// Test elements:
var out = every( [ x ] );
// returns true

The function accepts the following arguments:

• arrays: array-like object containing an input ndarray.

The provided ndarray should be an object with the following properties:

• dtype: data type.
• data: data buffer.
• shape: dimensions.
• strides: stride lengths.
• offset: index offset.
• order: specifies whether an ndarray is row-major (C-style) or column major (Fortran-style).

Notes

• For very high-dimensional ndarrays which are non-contiguous, one should consider copying the underlying data to contiguous memory before performing the operation in order to achieve better performance.

Examples

var bernoulli = require( '@stdlib/random-array-bernoulli' );
var ndarray2array = require( '@stdlib/ndarray-base-to-array' );
var every = require( '@stdlib/ndarray-base-every' );

var x = {
    'dtype': 'generic',
    'data': bernoulli( 10, 0.9, {
        'dtype': 'generic'
    }),
    'shape': [ 5, 2 ],
    'strides': [ 2, 1 ],
    'offset': 0,
    'order': 'row-major'
};
console.log( ndarray2array( x.data, x.shape, x.strides, x.offset, x.order ) );

var out = every( [ x ] );
console.log( out );

C APIs

Character codes for data types:

• x: bool (boolean).
• z: complex128 (double-precision floating-point complex number).
• c: complex64 (single-precision floating-point complex number).
• f: float32 (single-precision floating-point number).
• d: float64 (double-precision floating-point number).
• k: int16 (signed 16-bit integer).
• i: int32 (signed 32-bit integer).
• s: int8 (signed 8-bit integer).
• t: uint16 (unsigned 16-bit integer).
• u: uint32 (unsigned 32-bit integer).
• b: uint8 (unsigned 8-bit integer).

Function name suffix naming convention:

stdlib_ndarray_every_<input_data_type>_<output_data_type>

For example,

void stdlib_ndarray_every_d_x(...) {...}

is a function which accepts one double-precision floating-point input ndarray and one boolean output ndarray.

Function name suffix naming convention for applying a predicate function:

stdlib_ndarray_every_by_<input_data_type>_<output_data_type>[_as_<callback_arg_data_type>_<callback_return_data_type>]

For example,

void stdlib_ndarray_every_by_d_x(...) {...}

is a function which accepts one double-precision floating-point input ndarray and one boolean output ndarray. In other words, the suffix encodes the function type signature.

To support callbacks whose input arguments are of a different data type than the input ndarray data type, the naming convention supports appending an as suffix. For example,

void stdlib_ndarray_every_by_f_x_as_d_x(...) {...}

is a function which accepts one single-precision floating-point input ndarray and one boolean output ndarray. However, the callback accepts double-precision floating-point numbers. Accordingly, the input values need to be cast using the following conversion sequence

#include <stdbool.h>

// Convert each input array element to double-precision:
double in1 = (double)x[ i ];

// Evaluate the callback:
bool out = f( in1 );

Usage

#include "stdlib/ndarray/base/every.h"

stdlib_ndarray_every_b_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_b_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_b_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_c_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include "stdlib/complex/float32/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_COMPLEX64;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 16, 8 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_c_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_c_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_d_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_FLOAT64;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 16, 8 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_d_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_d_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_f_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_FLOAT32;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 8, 4 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_f_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_f_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_i_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_INT32;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 8, 4 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_i_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_i_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_k_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_INT16;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 4, 2 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_k_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_k_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_s_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_INT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_s_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_s_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_t_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT16;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 4, 2 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_t_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_t_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_u_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT32;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 8, 4 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_u_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_u_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_x_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_BOOL;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_x_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_x_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_z_x( *arrays[], *data )

Tests whether every element in an input ndarray is truthy.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include "stdlib/complex/float64/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_COMPLEX128;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 32, 16 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Test elements:
int8_t status = stdlib_ndarray_every_z_x( arrays, NULL );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to a zero-dimensional output ndarray.
• data: [in] void* function data. This argument is unused and should be a NULL pointer.

int8_t stdlib_ndarray_every_z_x( struct ndarray *arrays[], void *data );

stdlib_ndarray_every_by_b_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const uint8_t x ) {
    return x == 0;
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_b_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(uint8_t) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_b_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_b_x_as_c_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include "stdlib/complex/float32/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const stdlib_complex64_t x ) {
    return ( stdlib_complex64_real( x ) == 0.0f && stdlib_complex64_imag( x ) == 0.0f );
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_b_x_as_c_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(stdlib_complex64_t) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_b_x_as_c_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_b_x_as_d_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const double x ) {
    return x == 0.0;
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_b_x_as_d_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(double) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_b_x_as_d_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_b_x_as_f_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const float x ) {
    return x == 0.0f;
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_b_x_as_f_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(float) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_b_x_as_f_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_b_x_as_i_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const int32_t x ) {
    return x == 0;
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_b_x_as_i_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(int32_t) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_b_x_as_i_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_b_x_as_k_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const int16_t x ) {
    return x == 0;
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_b_x_as_k_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(int16_t) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_b_x_as_k_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_b_x_as_t_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const uint16_t x ) {
    return x == 0;
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_b_x_as_t_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(uint16_t) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_b_x_as_t_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_b_x_as_u_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const uint32_t x ) {
    return x == 0;
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_b_x_as_u_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(uint32_t) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_b_x_as_u_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_b_x_as_z_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include "stdlib/complex/float64/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_UINT8;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 2, 1 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const stdlib_complex128_t x ) {
    return ( stdlib_complex128_real( x ) == 0.0 && stdlib_complex128_imag( x ) == 0.0 );
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_b_x_as_z_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(stdlib_complex128_t) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_b_x_as_z_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_c_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include "stdlib/complex/float32/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_COMPLEX64;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 16, 8 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const stdlib_complex64_t x ) {
    return ( stdlib_complex64_real( x ) == 0.0f && stdlib_complex64_imag( x ) == 0.0f );
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_c_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(stdlib_complex64_t) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_c_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_c_x_as_z_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include "stdlib/complex/float64/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_COMPLEX64;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 16, 8 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const stdlib_complex128_t x ) {
    return ( stdlib_complex128_real( x ) == 0.0 && stdlib_complex128_imag( x ) == 0.0 );
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_c_x_as_z_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(stdlib_complex128_t) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_c_x_as_z_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_d_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_FLOAT64;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 16, 8 };
int64_t sy[] = { 0 };

// Define the index offsets:
int64_t ox = 0;
int64_t oy = 0;

// Define the array order:
enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR;

// Specify the index mode:
enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR;

// Specify the subscript index modes:
int8_t submodes[] = { imode };
int64_t nsubmodes = 1;

// Create an input ndarray:
struct ndarray *x = stdlib_ndarray_allocate( xdtype, xbuf, ndims, shx, sx, ox, order, imode, nsubmodes, submodes );
if ( x == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an output ndarray:
struct ndarray *y = stdlib_ndarray_allocate( ydtype, ybuf, 0, shy, sy, oy, order, imode, nsubmodes, submodes );
if ( y == NULL ) {
    fprintf( stderr, "Error allocating memory.\n" );
    exit( EXIT_FAILURE );
}

// Create an array containing the ndarrays:
struct ndarray *arrays[] = { x, y };

// Define a callback:
static bool fcn( const double x ) {
    return x == 0.0;
}

// Test elements:
int8_t status = stdlib_ndarray_every_by_d_x( arrays, (void *)fcn );
if ( status != 0 ) {
    fprintf( stderr, "Error during computation.\n" );
    exit( EXIT_FAILURE );
}

// ...

// Free allocated memory:
stdlib_ndarray_free( x );
stdlib_ndarray_free( y );

The function accepts the following arguments:

• arrays: [inout] struct ndarray** array whose first element is a pointer to an input ndarray and whose second element is a pointer to an output ndarray.
• fcn: [in] void* a bool (*f)(double) predicate function to apply provided as a void pointer.

int8_t stdlib_ndarray_every_by_d_x( struct ndarray *arrays[], void *fcn );

stdlib_ndarray_every_by_d_x_as_z_x( *arrays[], *fcn )

Tests whether every element in an input ndarray is truthy according to a predicate function.

#include "stdlib/ndarray/dtypes.h"
#include "stdlib/ndarray/index_modes.h"
#include "stdlib/ndarray/orders.h"
#include "stdlib/ndarray/ctor.h"
#include "stdlib/complex/float64/ctor.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>

// Define the ndarray data types:
enum STDLIB_NDARRAY_DTYPE xdtype = STDLIB_NDARRAY_FLOAT64;
enum STDLIB_NDARRAY_DTYPE ydtype = STDLIB_NDARRAY_BOOL;

// Create underlying byte arrays:
uint8_t xbuf[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t ybuf[] = { 0 };

// Define the number of dimensions:
int64_t ndims = 2;

// Define the array shapes:
int64_t shx[] = { 2, 2 };
int64_t *shy = NULL;

// Define the strides:
int64_t sx[] = { 16, 8 };