22 lines
563 B
C
22 lines
563 B
C
#include <stdint.h>
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#include <stdint.h>
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#define BUILD_SEED ((uint64_t)(__TIME__[0]) * (uint64_t)(__TIME__[1]) * \
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(uint64_t)(__TIME__[3]) * (uint64_t)(__TIME__[4]) * \
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(uint64_t)(__TIME__[6]) * (uint64_t)(__TIME__[7]))
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static uint64_t seed = BUILD_SEED;
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void sprand(uint64_t s) {
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seed = s ? s : 1; // Ensure the seed is never 0
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}
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uint64_t prand() {
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seed = seed * 6364136223846793005ULL + 1;
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return seed;
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}
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uint64_t prand_range(uint64_t min, uint64_t max) {
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return min + (prand() % (max - min + 1));
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}
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