cutils.h

   1 #ifndef CUTILS_H
   2 #define CUTILS_H
   3
   4 #define SCN_ptr SCNxPTR
   5 #define FMT_ptr PRIxPTR
   6
   7 #if defined __GNUC__
   8 #define NORETURN_ATTR __attribute__ ((noreturn))
   9 #define UNUSED_ATTR __attribute__ ((unused))
  10 #if !defined __clang__
  11 #define OPTIMIZE_ATTR(n) __attribute__ ((optimize ("O"#n)))
  12 #else
  13 #define OPTIMIZE_ATTR(n)
  14 #endif
  15 #define GCC_FMT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
  16 #else
  17 #define NORETURN_ATTR
  18 #define UNUSED_ATTR
  19 #define OPTIMIZE_ATTR(n)
  20 #define GCC_FMT_ATTR(a, b)
  21 #endif
  22
  23 extern void NORETURN_ATTR GCC_FMT_ATTR (2, 3)
  24     err (int exitcode, const char *fmt, ...);
  25 extern void NORETURN_ATTR GCC_FMT_ATTR (2, 3)
  26     errx (int exitcode, const char *fmt, ...);
  27 extern void *parse_pointer (const char *cap, const char *s);
  28 extern double now (void);
  29 extern void fmt_linkn (char *s, unsigned int u);
  30 extern char *ystrdup (const char *s);
  31
  32 #endif