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#include "cs.h"
#ifdef MATLAB_MEX_FILE
#define malloc mxMalloc
#define free mxFree
#define realloc mxRealloc
#define calloc mxCalloc
#endif
/* wrapper for malloc */
void *cs_malloc (int n, size_t size)
{
return (CS_OVERFLOW (n,size) ? NULL : malloc (CS_MAX (n,1) * size)) ;
}
/* wrapper for calloc */
void *cs_calloc (int n, size_t size)
{
return (CS_OVERFLOW (n,size) ? NULL : calloc (CS_MAX (n,1), size)) ;
}
/* wrapper for free */
void *cs_free (void *p)
{
if (p) free (p) ; /* free p if it is not already NULL */
return (NULL) ; /* return NULL to simplify the use of cs_free */
}
/* wrapper for realloc */
void *cs_realloc (void *p, int n, size_t size, int *ok)
{
void *p2 ;
*ok = !CS_OVERFLOW (n,size) ; /* guard against int overflow */
if (!(*ok)) return (p) ; /* p unchanged if n too large */
p2 = realloc (p, CS_MAX (n,1) * size) ; /* realloc the block */
*ok = (p2 != NULL) ;
return ((*ok) ? p2 : p) ; /* return original p if failure */
}
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