File: helpers.c

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#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include "helpers.h"

void warn(char *fmt, ...)
{
	va_list ap;
	va_start(ap, fmt);
	vfprintf(stderr, fmt, ap);
	va_end(ap);
}

__attribute__((noreturn))
void err(char *fmt, ...)
{
	va_list ap;
	va_start(ap, fmt);
	vfprintf(stderr, fmt, ap);
	va_end(ap);
	exit(EXIT_FAILURE);
}