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/*
* malloc.h: safe wrappers around malloc, realloc, free, strdup
*/
#ifndef UMLWRAP_MALLOC_H
#define UMLWRAP_MALLOC_H
#include <stddef.h>
/*
* smalloc should guarantee to return a useful pointer - Halibut
* can do nothing except die when it's out of memory anyway.
*/
void *smalloc(size_t size);
/*
* srealloc should guaranteeably be able to realloc NULL
*/
void *srealloc(void *p, size_t size);
/*
* sfree should guaranteeably deal gracefully with freeing NULL
*/
void sfree(void *p);
/*
* dupstr is like strdup, but with the never-return-NULL property
* of smalloc (and also reliably defined in all environments :-)
*/
char *dupstr(const char *s);
/*
* snew allocates one instance of a given type, and casts the
* result so as to type-check that you're assigning it to the
* right kind of pointer. Protects against allocation bugs
* involving allocating the wrong size of thing.
*/
#define snew(type) \
( (type *) smalloc (sizeof (type)) )
/*
* snewn allocates n instances of a given type, for arrays.
*/
#define snewn(number, type) \
( (type *) smalloc ((number) * sizeof (type)) )
/*
* sresize wraps realloc so that you specify the new number of
* elements and the type of the element, with the same type-
* checking advantages. Also type-checks the input pointer.
*/
#define sresize(array, number, type) \
( (void)sizeof((array)-(type *)0), \
(type *) srealloc ((array), (number) * sizeof (type)) )
#endif /* UMLWRAP_MALLOC_H */
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