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/**
* @license Apache-2.0
*
* Copyright (c) 2018 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "stdlib/strided/base/unary.h"
#include <stdint.h>
#include <stdio.h>
#include <inttypes.h>
// Define a callback:
static double scale( const double x ) {
return x * 10.0;
}
int main() {
// Create underlying byte arrays:
uint8_t x[] = { 1, 4, 7 };
uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
// Define a pointer to an array containing pointers to strided arrays:
uint8_t *arrays[] = { x, out };
// Define the strides:
int64_t strides[] = { 1, 8 }; // 1 byte per uint8, 8 bytes per double
// Define the number of elements over which to iterate:
int64_t shape[] = { 3 };
// Apply the callback:
stdlib_strided_b_d_as_d_d( arrays, shape, strides, (void *)scale );
// Print the contents of the output array:
uint8_t *op1 = out;
for ( int64_t i = 0; i < shape[0]; i++, op1 += strides[1] ) {
const double v = *(double *)op1; // cppcheck-suppress invalidPointerCast
printf( "out[ %"PRId64" ] = %lf\n", i, v );
}
}
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