safe_mem.c File Reference

These are interface routines to be placed between a program and the system memory allocator. More...

#include "util.h"

Go to the source code of this file.

Functions
char *	MMalloc (int size)
	Safe malloc.
char *	MMrealloc (char *obj, int size)
	Safe realloc.
void	MMfree (char *obj)
	Safe free.

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Detailed Description

These are interface routines to be placed between a program and the system memory allocator.

It forces well-defined semantics for several 'borderline' cases:

• malloc() of a 0 size object is guaranteed to return something which is not 0, and can safely be freed (but not dereferenced)
• free() accepts (silently) an 0 pointer
• realloc of a 0 pointer is allowed, and is equiv. to malloc()

Definition in file safe_mem.c.

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Function Documentation

char* MMalloc

(

int

size

)

Safe malloc.

Definition at line 36 of file safe_mem.c.

void MMfree

(

char *

obj

)

Safe free.

Definition at line 87 of file safe_mem.c.

char* MMrealloc	(	char *	obj,
		int	size
	)

Safe realloc.

Definition at line 59 of file safe_mem.c.