/*
 * util.h - Utility functions
 *
 * Copyright 2012 by Werner Almesberger
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#ifndef	UTIL_H
#define	UTIL_H

#include <stdlib.h>
#include <string.h>


#define alloc_size(s)				\
    ({  void *alloc_size_tmp = malloc(s);	\
	if (!alloc_size_tmp)			\
		abort();			\
	alloc_size_tmp; })

#define alloc_type(t) ((t *) alloc_size(sizeof(t)))


static inline char *stralloc(const char *s)
{
	char *t;

	t = strdup(s);
	if (!t)
		abort();
	return t;
}


static inline char *stralloc_n(const char *s, int n)
{
	char *t;

	t = alloc_size(n+1);
	if (!t)
		abort();
	memcpy(t, s, n);
	t[n] = 0;
	return t;
}


const char *unique(const char *s);
const char *unique_n(const char *s, int n);

#endif /* !UTIL_H */