1
2extern float strtof(const char *__restrict__ ptr, char **__restrict__ endptr);
3extern double strtod(const char *__restrict ptr, char **__restrict endptr);
4/* restrict: -std=c99 or -std=gnu99 or -std=c11 */
5extern long double strtold(const char *restrict ptr, char **restrict endptr);
6
7extern int (*funcs[])(void);
8
9/* typeof: no -std or -std=gnu90 or -std=gnu99 or -std=gnu11 */
10extern typeof (funcs[0]) f0;
11extern __typeof (funcs[1]) f1;
12extern __typeof__(funcs[2]) f2;
13
14typedef unsigned short uint16_t;
15typedef unsigned int uint32_t;
16typedef unsigned long long uint64_t;
17
18static __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
24static __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 */
33static 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 */
47