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#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <math.h>
#ifndef FUN_NAME_SUFFIX
#define FUN_NAME_SUFFIX
#endif
#ifdef MULT
#undef MULT
#endif
#define MULT CAT(mult, FUN_NAME_SUFFIX)
#ifdef MAIN
#undef MAIN
#endif
#define MAIN CAT(main, FUN_NAME_SUFFIX)
void
MULT (float *matrix1, float *matrix2, float *result,
unsigned dim0, unsigned dim1)
{
memset (result, 0, sizeof (float) * dim0 * dim1);
DIRECTIVE
TRANSFORMATION1
for (unsigned i = 0; i < dim0; i++)
TRANSFORMATION2
for (unsigned j = 0; j < dim1; j++)
TRANSFORMATION3
for (unsigned k = 0; k < dim1; k++)
result[i * dim1 + j] += matrix1[i * dim1 + k] * matrix2[k * dim0 + j];
}
int
MAIN ()
{
unsigned dim0 = 20;
unsigned dim1 = 20;
float *result = (float *) malloc (sizeof (float) * dim0 * dim1);
float *matrix1 = (float *) malloc (sizeof (float) * dim0 * dim1);
float *matrix2 = (float *) malloc (sizeof (float) * dim0 * dim1);
for (unsigned i = 0; i < dim0; i++)
for (unsigned j = 0; j < dim1; j++)
matrix1[i * dim1 + j] = j;
for (unsigned i = 0; i < dim0; i++)
for (unsigned j = 0; j < dim1; j++)
if (i == j)
matrix2[i * dim1 + j] = 1;
else
matrix2[i * dim1 + j] = 0;
MULT (matrix1, matrix2, result, dim0, dim1);
for (unsigned i = 0; i < dim0; i++)
for (unsigned j = 0; j < dim1; j++)
{
if (matrix1[i * dim1 + j] != result[i * dim1 + j])
{
print_matrix (matrix1, dim0, dim1);
print_matrix (matrix2, dim0, dim1);
print_matrix (result, dim0, dim1);
fprintf (stderr, "%s: ERROR at %d, %d\n", __FUNCTION__, i, j);
abort ();
}
}
free (matrix2);
free (matrix1);
free (result);
return 0;
}
#undef DIRECTIVE
#undef TRANSFORMATION1
#undef TRANSFORMATION2
#undef TRANSFORMATION3
#undef FUN_NAME_SUFFIX
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