diff options
Diffstat (limited to 'test/utils.h')
| -rw-r--r-- | test/utils.h | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/test/utils.h b/test/utils.h index fa05587..ec4c4ad 100644 --- a/test/utils.h +++ b/test/utils.h @@ -11,47 +11,47 @@ * taken from POSIX.1-2001 example */ -extern uint32_t lcg_seed; +extern uint32_t prng_seed; #ifdef USE_OPENMP -#pragma omp threadprivate(lcg_seed) +#pragma omp threadprivate(prng_seed) #endif static inline uint32_t -lcg_rand (void) +prng_rand (void) { - lcg_seed = lcg_seed * 1103515245 + 12345; - return ((uint32_t)(lcg_seed / 65536) % 32768); + prng_seed = prng_seed * 1103515245 + 12345; + return ((uint32_t)(prng_seed / 65536) % 32768); } static inline void -lcg_srand (uint32_t seed) +prng_srand (uint32_t seed) { - lcg_seed = seed; + prng_seed = seed; } static inline uint32_t -lcg_rand_n (int max) +prng_rand_n (int max) { - return lcg_rand () % max; + return prng_rand () % max; } static inline uint32_t -lcg_rand_N (int max) +prng_rand_N (int max) { - uint32_t lo = lcg_rand (); - uint32_t hi = lcg_rand () << 15; + uint32_t lo = prng_rand (); + uint32_t hi = prng_rand () << 15; return (lo | hi) % max; } static inline uint32_t -lcg_rand_u32 (void) +prng_rand_u32 (void) { /* This uses the 10/11 most significant bits from the 3 lcg results * (and mixes them with the low from the adjacent one). */ - uint32_t lo = lcg_rand() >> -(32 - 15 - 11 * 2); - uint32_t mid = lcg_rand() << (32 - 15 - 11 * 1); - uint32_t hi = lcg_rand() << (32 - 15 - 11 * 0); + uint32_t lo = prng_rand() >> -(32 - 15 - 11 * 2); + uint32_t mid = prng_rand() << (32 - 15 - 11 * 1); + uint32_t hi = prng_rand() << (32 - 15 - 11 * 0); return (hi ^ mid ^ lo); } |