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/*
* A safer saner malloc, for careless programmers
* $Revision: 6.21 A $
*/
#include <config.h>
#ifdef PSC
#include <stdio.h>
#else
#include <curses.h>
#endif /* PSC */
#include "sc.h"
static void fatal PROTO((char *));
#ifndef __STDC__
extern void free();
extern char * malloc();
extern char * realloc();
#endif /* __STDC__ */
#define MAGIC (double)1234567890.12344
char *
scxmalloc(n)
unsigned int n;
{
register char *ptr;
if ((ptr = malloc(n + sizeof(double))) == NULL)
fatal("scxmalloc: no memory");
*((double *) ptr) = MAGIC; /* magic number */
return(ptr + sizeof(double));
}
/* we make sure realloc will do a malloc if needed */
char *
scxrealloc(ptr, n)
char *ptr;
unsigned int n;
{
if (ptr == NULL)
return(scxmalloc(n));
ptr -= sizeof(double);
if (*((double *) ptr) != MAGIC)
fatal("scxrealloc: storage not scxmalloc'ed");
if ((ptr = realloc(ptr, n + sizeof(double))) == NULL)
fatal("scxmalloc: no memory");
*((double *) ptr) = MAGIC; /* magic number */
return(ptr + sizeof(double));
}
void
scxfree(p)
char *p;
{
if (p == NULL)
fatal("scxfree: NULL");
p -= sizeof(double);
if (*((double *) p) != MAGIC)
fatal("scxfree: storage not malloc'ed");
free(p);
}
#ifdef PSC
void
static fatal(str)
char *str;
{
(void) fprintf(stderr,"%s\n", str);
exit(1);
}
#else
static void
fatal(str)
char *str;
{
if (!using_X)
deraw();
(void) fprintf(stderr,"%s\n", str);
diesave();
exit(1);
}
#endif /* PSC */
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