AtomicGameEngine/Source/ThirdParty/TurboBadger/tb_hash.cpp

// ================================================================================
// ==      This file is a part of Turbo Badger. (C) 2011-2014, Emil Segerås      ==
// ==                     See tb_core.h for more information.                    ==
// ================================================================================

#include "tb_hash.h"

namespace tb {

#ifndef TB_SUPPORT_CONSTEXPR

uint32 TBGetHash(const char *str)
{
    if (!str || !*str)
        return 0;
    // FNV hash
    uint32 hash = 2166136261U;
    int i = 0;
    while (str[i])
    {
        char c = str[i++];
        hash = (16777619U * hash) ^ c;
    }
    return hash;
}

#endif // !TB_SUPPORT_CONSTEXPR

}; // namespace tb