problem with free function
Collewet Guylaine
guylaine.collewet at cemagref.fr
Fri Feb 11 17:22:27 CET 2011
Hello,
I have a problem with the "free" function which makes scilab crash
I wrote two functions "sci_imdilate" and "image_dilate"
sci_imdilate is the interface between scilab and the function
image_dilate
the memory pointed by l_dilated_image (see the code below) is allocated
by image_dilate and I'd like to free it in sci_imdilate
however, a call to free makes scilab crash
If I remove the "free", the whole function works properly
I cannot undersand why
Does someone see my mistake ?
I am working with scilab 5.2.2 32 bits on windows 7 (64 bits machine)
Regards
Guylaine Collewet
/////////////////////////
// function sci_imdilate
///////////////////////
double *l_dilated_image;
.../...
dilate_image(&l_image[0], m_image, n_image, &l_kernel[0], m_kernel,
n_kernel, &l_dilated_image, &l_mask[0], &ierr);
createMatrixOfDouble(pvApiCtx, 4, m_image, n_image, l_dilated_image);
if(l_dilated_image) {
free(l_dilated_image);
}
/////////////////////////
// function dilate_image
/////////////////////////
int dilate_image(double *image, int width, int height, double *kernel,
int kernel_width, int kernel_height, double **dilated_image, double
*mask, int *ierr)
{
.../...
if (!(*dilated_image = (double*)calloc(1,
sizeof(double)*width*height)))
{
*ierr=1;
return(-1);
}
.../...
}
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.scilab.org/pipermail/users/attachments/20110211/2c580d32/attachment.htm>
More information about the users
mailing list