fiss

Friedel's Initialization and Service Supervision
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common.h (846B)

      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