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/*
* A safer saner malloc, for careless programmers
* $Revision: 7.16 $
*/
#include <curses.h>
#include <stdlib.h>
#include "sc.h"
/* extern char *malloc();
extern char *realloc();
extern void free(); */
void fatal();
#ifdef SYSV3
extern void free();
extern void exit();
#endif
#define MAGIC (double)1234567890.12344
char *
scxmalloc(unsigned 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(char *ptr, unsigned 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(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
fatal(char *str)
{
(void) fprintf(stderr,"%s\n", str);
exit(1);
}
#else
void
fatal(char *str)
{
deraw(1);
(void) fprintf(stderr,"%s\n", str);
diesave();
exit(1);
}
#endif /* PSC */
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