include/util.h

   1
   2 #ifndef __MIXP_INTERN_UTIL_H
   3 #define __MIXP_INTERN_UTIL_H
   4
   5 #define MAX(a, b) (a > b ? a : b)
   6 #define MIN(a, b) (a < b ? a : b)
   7
   8 #define nelem(ary) (sizeof(ary) / sizeof(*ary))
   9
  10 /* util.c */
  11 unsigned int tokenize(char *res[], unsigned int reslen, char *str, char delim);
  12 void *ixp_erealloc(void *ptr, unsigned int size);
  13 void ixp_fatal(const char *fmt, ...);
  14
  15 char *argv0;
  16 #undef ARGBEGIN
  17 #undef ARGEND
  18 #undef ARGF
  19 #undef EARGF
  20 #define ARGBEGIN int _argi, _argtmp, _inargv=0; char *_argv; \
  21                 if(!argv0)argv0=ARGF(); _inargv=1; \
  22                 while(argc && argv[0][0] == '-') { \
  23                         _argi=1; _argv=*argv++; argc--; \
  24                         while(_argv[_argi]) switch(_argv[_argi++])
  25 #define ARGEND }_inargv=0;USED(_argtmp);USED(_argv);USED(_argi)
  26 #define ARGF() ((_inargv && _argv[_argi]) ? \
  27                 (_argtmp=_argi, _argi=strlen(_argv), _argv+_argtmp) \
  28                 : ((argc > 0) ? (argc--, *argv++) : ((char*)0)))
  29 #define EARGF(f) ((_inargv && _argv[_argi]) ? \
  30                 (_argtmp=_argi, _argi=strlen(_argv), _argv+_argtmp) \
  31                 : ((argc > 0) ? (argc--, *argv++) : ((f), (char*)0)))
  32
  33 #undef USED
  34 #undef SET
  35 #define USED(x) if(x){}else
  36 #define SET(x) ((x)=0)
  37
  38 #endif