nbtvis/src/lib.c

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2023-12-14 23:08:16 +00:00
#include "lib.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
__attribute__((__noreturn__))
static void die() {
exit(1);
}
void error_and_die(char *format, ...) {
va_list list;
va_start(list, format);
vfprintf(stderr, format, list);
die();
}
__attribute__((__noreturn__, format(printf, 1, 2)))
void perror_and_die(char *format, ...) {
va_list list;
va_start(list, format);
vfprintf(stderr, format, list);
perror(": ");
die();
}
void *xalloc(size_t amount) {
void *res = malloc(amount);
if (res == NULL)
error_and_die("failed to allocate memory");
return res;
}
void *xrealloc(void *ptr, size_t amount) {
void *res = realloc(ptr, amount);
if (res == NULL)
error_and_die("failed to allocate memory");
return res;
}