alloc.c


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#include <u.h>
#include <libc.h>
#include <draw.h>

void*
emalloc(ulong n)
{
	void *p;

	p = malloc(n);
	if(p == nil)
		sysfatal("malloc: %r");
	setmalloctag(p, getcallerpc(&n));
	return p;
}

void*
erealloc(void *p, ulong n)
{
	void *np;

	np = realloc(p, n);
	if(np == nil){
		if(n == 0)
			return nil;
		sysfatal("realloc: %r");
	}
	if(p == nil)
		setmalloctag(np, getcallerpc(&p));
	else
		setrealloctag(np, getcallerpc(&p));
	return np;
}

char *
estrdup(char *s)
{
	char *ns;

	ns = strdup(s);
	if(ns == nil)
		sysfatal("strdup: %r");
	return ns;
}

Image*
eallocimage(Display *d, Rectangle r, ulong chan, int repl, ulong col)
{
	Image *i;

	i = allocimage(d, r, chan, repl, col);
	if(i == nil)
		sysfatal("allocimage: %r");
	return i;
}