validation/alternate-keywords.c

   1
   2 extern float strtof(const char *__restrict__ ptr, char **__restrict__ endptr);
   3 extern double strtod(const char *__restrict ptr, char **__restrict endptr);
   4 /* restrict: -std=c99 or -std=gnu99 or -std=c11 */
   5 extern long double strtold(const char *restrict ptr, char **restrict endptr);
   6
   7 extern int (*funcs[])(void);
   8
   9 /* typeof: no -std or -std=gnu90 or -std=gnu99 or -std=gnu11 */
  10 extern typeof (funcs[0]) f0;
  11 extern __typeof (funcs[1]) f1;
  12 extern __typeof__(funcs[2]) f2;
  13
  14 typedef unsigned short uint16_t;
  15 typedef unsigned int uint32_t;
  16 typedef unsigned long long uint64_t;
  17
  18 static __inline__ uint16_t swap16(uint16_t val)
  19 {
  20         return ((((uint16_t)(val) & (uint16_t)0x00ffU) << 8) |
  21                 (((uint16_t)(val) & (uint16_t)0xff00U) >> 8));
  22 }
  23
  24 static __inline uint32_t swap32(uint32_t val)
  25 {
  26         return ((((uint32_t)(val) & (uint32_t)0x000000ffUL) << 24) |
  27                 (((uint32_t)(val) & (uint32_t)0x0000ff00UL) <<  8) |
  28                 (((uint32_t)(val) & (uint32_t)0x00ff0000UL) >>  8) |
  29                 (((uint32_t)(val) & (uint32_t)0xff000000UL) >> 24));
  30 }
  31
  32 /* inline: no -std or -std=gnu90 or -std=c99 or -std=c11 */
  33 static inline uint64_t swap64(uint64_t val)
  34 {
  35         return ((((uint64_t)(val) & (uint64_t)0x00000000000000ffULL) << 56) |
  36                 (((uint64_t)(val) & (uint64_t)0x000000000000ff00ULL) << 40) |
  37                 (((uint64_t)(val) & (uint64_t)0x0000000000ff0000ULL) << 24) |
  38                 (((uint64_t)(val) & (uint64_t)0x00000000ff000000ULL) <<  8) |
  39                 (((uint64_t)(val) & (uint64_t)0x000000ff00000000ULL) >>  8) |
  40                 (((uint64_t)(val) & (uint64_t)0x0000ff0000000000ULL) >> 24) |
  41                 (((uint64_t)(val) & (uint64_t)0x00ff000000000000ULL) >> 40) |
  42                 (((uint64_t)(val) & (uint64_t)0xff00000000000000ULL) >> 56));
  43 }
  44 /*
  45  * check-name: alternate keywords
  46  */