common.h (846B) download
1#pragma once
2
3#define SHIFT(n) (argc -= (n), argv += (n))
4
5#define THROW(condition, message, exitcode, ...) \
6 { \
7 if (condition) { \
8 fprint(1, "%s: " message ": %s\n", \
9 current_prog(), ##__VA_ARGS__, strerror(errno)); \
10 if (exitcode != -1) \
11 exit(exitcode); \
12 } \
13 }
14
15#define THROW_MIN(func, ...) THROW((func) == -1, __VA_ARGS__)
16
17#define THROW_NULL(func, ...) THROW((func) == NULL, __VA_ARGS__)
18
19#define FALLTHROUGH __attribute__((fallthrough))
20
21#define EXIT_SUCCESS 0
22#define EXIT_USER 100
23#define EXIT_TEMP 101
24#define EXIT_PERM 102