31 lines
624 B
C++
31 lines
624 B
C++
#include "util/hash.h"
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#include "string/string.h"
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namespace glcr {
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namespace {
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const uint64_t kFnvOffset = 0xcbf29ce484222325;
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const uint64_t kFnvPrime = 0x100000001b3;
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} // namespace
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uint64_t Hash<uint64_t>::operator()(const uint64_t& value) {
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uint64_t hash = kFnvOffset;
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for (uint8_t i = 0; i < 8; i++) {
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hash *= kFnvPrime;
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hash ^= (value >> (8 * i)) & 0xFF;
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}
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return hash;
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}
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uint64_t Hash<String>::operator()(const String& value) {
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uint64_t hash = kFnvOffset;
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for (uint8_t i = 0; i < value.length(); i++) {
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hash *= kFnvPrime;
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hash ^= value[i];
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}
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return hash;
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}
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} // namespace glcr
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