HashCode.cpp

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#include"HashCode.h"
 
int hashCode(int key) {
    return key & HASH_MASK;
}
 
int hashCode(bool key) {
    return hashCode(static_cast<int>(key));
}
 
int hashCode(char key) {
    return hashCode(static_cast<int>(key));
}
 
int hashCode(unsigned int key) {
    return hashCode(static_cast<int>(key));
}
 
int hashCode(long key) {
    return hashCode(static_cast<int>(key));
}
 
int hashCode(unsigned long key) {
    return hashCode(static_cast<int>(key));
}
 
int hashCode(short key) {
    return hashCode(static_cast<int>(key));
}
 
int hashCode(unsigned short key) {
    return hashCode(static_cast<int>(key));
}
 
#ifdef _WIN64
int hashCode(uintptr_t key) {
    return hashCode(static_cast<unsigned long>(key));
}
#endif // _WIN64
 
 
int hashCode(void* key) {
    return hashCode(reinterpret_cast<uintptr_t>(key));
}
 
int hashCode(const char* base, size_t numBytes) {
    unsigned hash = HASH_SEED;
    for (size_t i = 0; i < numBytes; i++) {
        hash = HASH_MULTIPLIER * hash + base[i];
    }
    return hashCode(hash);
}
 
int hashCode(const char* str) {
    return hashCode(str, strlen(str));
}
 
int hashCode(const std::string& str) {
    return hashCode(str.data(), str.length());
}
 
int hashCode(double key) {
    return hashCode(reinterpret_cast<const char*>(&key), sizeof(double));
}
 
int hashCode(float key) {
    return hashCode(reinterpret_cast<const char*>(&key), sizeof(float));
}
 
int hashCode(long double key) {
    return hashCode(reinterpret_cast<const char*>(&key), sizeof(long double));
}