abdelrahman/wizapp-stdlib
0
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Switch to using tabs instead of spaces #9

Merged
abdelrahman merged 9 commits from Reformat into main 2025-12-29 22:46:52 +00:00
Conversation 0 Commits 9 Files Changed 60 +65 -65
2 changed files with 65 additions and 65 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit 6abf510f79 - Show all commits

122
src/prng/xorshift/xorshift.c
View File

@@ -9,7 +9,7 @@
typedef struct split_mix_64_state SplitMix64State;
struct split_mix_64_state {
u64 seed;
u64 seed;
};
wapp_intern u64 rol64(u64 x, u64 bits);
@@ -18,118 +18,118 @@ wapp_intern void seed_os_generator(void);
wapp_intern u64 generate_random_number(void);
XOR256State wapp_prng_xorshift_init_state(void) {
wapp_persist b8 seeded = false;
if (!seeded) {
seeded = true;
seed_os_generator();
}
wapp_persist b8 seeded = false;
if (!seeded) {
seeded = true;
seed_os_generator();
}
SplitMix64State sm64 = {.seed = generate_random_number()};
SplitMix64State sm64 = {.seed = generate_random_number()};
return (XOR256State){
.x = split_mix_64(&sm64),
.y = split_mix_64(&sm64),
.z = split_mix_64(&sm64),
.w = split_mix_64(&sm64),
};
return (XOR256State){
.x = split_mix_64(&sm64),
.y = split_mix_64(&sm64),
.z = split_mix_64(&sm64),
.w = split_mix_64(&sm64),
};
}
u64 wapp_prng_xorshift_256(XOR256State *state) {
u64 t = state->x ^ (state->x << 11);
u64 t = state->x ^ (state->x << 11);
state->x = state->y;
state->y = state->z;
state->z = state->w;
state->w = (state->w ^ (state->w >> 19)) ^ (t ^ (t >> 8));
state->x = state->y;
state->y = state->z;
state->z = state->w;
state->w = (state->w ^ (state->w >> 19)) ^ (t ^ (t >> 8));
return state->w;
return state->w;
}
u64 wapp_prng_xorshift_256ss(XOR256State *state) {
const u64 result = rol64(state->z * 5, 7) * 9;
const u64 t = state->z << 17;
const u64 result = rol64(state->z * 5, 7) * 9;
const u64 t = state->z << 17;
state->y ^= state->w;
state->x ^= state->z;
state->z ^= state->y;
state->w ^= state->x;
state->y ^= state->w;
state->x ^= state->z;
state->z ^= state->y;
state->w ^= state->x;
state->y ^= t;
state->x = rol64(state->x, 45);
state->y ^= t;
state->x = rol64(state->x, 45);
return result;
return result;
}
u64 wapp_prng_xorshift_256p(XOR256State *state) {
const u64 result = state->w + state->x;
const u64 t = state->z << 17;
const u64 result = state->w + state->x;
const u64 t = state->z << 17;
state->y ^= state->w;
state->x ^= state->z;
state->z ^= state->y;
state->w ^= state->x;
state->y ^= state->w;
state->x ^= state->z;
state->z ^= state->y;
state->w ^= state->x;
state->y ^= t;
state->x = rol64(state->x, 45);
state->y ^= t;
state->x = rol64(state->x, 45);
return result;
return result;
}
wapp_intern u64 rol64(u64 x, u64 bits) {
return (x << bits) | (x >> (64 - bits));
return (x << bits) | (x >> (64 - bits));
}
wapp_intern u64 split_mix_64(SplitMix64State *state) {
state->seed += 0x9E3779B97f4A7C15;
state->seed += 0x9E3779B97f4A7C15;
u64 result = state->seed;
result = (result ^ (result >> 30)) * 0xBF58476D1CE4E5B9;
result = (result ^ (result >> 27)) * 0x94D049BB133111EB;
u64 result = state->seed;
result = (result ^ (result >> 30)) * 0xBF58476D1CE4E5B9;
result = (result ^ (result >> 27)) * 0x94D049BB133111EB;
return result ^ (result >> 31);
return result ^ (result >> 31);
}
#if defined(WAPP_PLATFORM_C) && WAPP_PLATFORM_C_VERSION >= WAPP_PLATFORM_C11_VERSION
#ifdef WAPP_PLATFORM_POSIX
wapp_intern void seed_os_generator(void) {
struct timespec ts = {0};
int result = clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
wapp_runtime_assert(result == 0, "Invalid seed value");
struct timespec ts = {0};
int result = clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
wapp_runtime_assert(result == 0, "Invalid seed value");
srand48(ts.tv_nsec);
srand48(ts.tv_nsec);
}
wapp_intern u64 generate_random_number(void) {
return lrand48();
return lrand48();
}
#else
wapp_intern void seed_os_generator(void) {
struct timespec ts = {0};
int result = timespec_get(&ts, TIME_UTC);
wapp_runtime_assert(result != 0, "Invalid seed value");
struct timespec ts = {0};
int result = timespec_get(&ts, TIME_UTC);
wapp_runtime_assert(result != 0, "Invalid seed value");
srand(ts.tv_nsec);
srand(ts.tv_nsec);
}
wapp_intern u64 generate_random_number(void) {
i32 n1 = rand();
i32 n2 = rand();
i32 n1 = rand();
i32 n2 = rand();
return (((u64)n1) << 32 | (u64)n2);
return (((u64)n1) << 32 | (u64)n2);
}
#endif // !WAPP_PLATFORM_POSIX
#else
wapp_intern void seed_os_generator(void) {
time_t result = time(NULL);
wapp_runtime_assert(result != (time_t)(-1), "Invalid seed value");
time_t result = time(NULL);
wapp_runtime_assert(result != (time_t)(-1), "Invalid seed value");
srand(result);
srand(result);
}
wapp_intern u64 generate_random_number(void) {
i32 n1 = rand();
i32 n2 = rand();
i32 n1 = rand();
i32 n2 = rand();
return (((u64)n1) << 32 | (u64)n2);
return (((u64)n1) << 32 | (u64)n2);
}
#endif // !WAPP_PLATFORM_C

8
src/prng/xorshift/xorshift.h
View File

@@ -12,10 +12,10 @@ BEGIN_C_LINKAGE
typedef struct xor_256_state XOR256State;
struct xor_256_state {
u64 x;
u64 y;
u64 z;
u64 w;
u64 x;
u64 y;
u64 z;
u64 w;
};
XOR256State wapp_prng_xorshift_init_state(void);