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| #include "mex.h"
/*#######################************ Programme C copie d'une matrice ***********************####################*/
void copie(double **x, double **res, size_t row, size_t col) {
size_t i1, j1;
for(i1=0;i1<row;++i1)
for(j1=0;j1<col;++j1)
res[i1][j1] = x[i1][j1];
}
void mexFunction( int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[] ) {
double *x, *res, **I;
double **Icopie;
size_t i, j, nrow, ncol;
nrow = mxGetM(prhs[0]);
ncol = mxGetN(prhs[0]);
x = mxGetPr(prhs[0]);
I = mxMalloc(nrow * sizeof(double *));
/* changement de representation en memoire des matrices matlab */
for (i = 0; i < nrow; ++i)
I[i] = mxMalloc(ncol * sizeof(double));
for(i=0;i<nrow;++i)
for(j=0;j<ncol;++j)
I[i][j] = x[j*nrow+i];
Icopie = mxMalloc(nrow * sizeof(double *));
for (i = 0; i < nrow; ++i)
Icopie[i] = mxMalloc(ncol * sizeof(double));
plhs[0] = mxCreateDoubleMatrix(nrow, ncol, mxREAL);
res= mxGetPr(plhs[0]);
/* appel de la fonction C */
copie(I, Icopie, nrow, ncol) ;
/*resultat */
for(j=0;j<ncol;++j)
for(i=0;i<nrow;++i)
res[j*nrow+i] = Icopie[i][j]; /*réfléchir */
/* liberation memoire */
for (i = 0; i < nrow; ++i) {
mxFree(I[i]);
mxFree(Icopie[i]);
}
mxFree(I);
mxFree(Icopie);
} |
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