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Fast Compile-Time String Hashing with C++17 constexpr [Discussion #5]

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5y ago · Feb 22, 2021 2:33 PM

Here is a 5-line FNV-1a constexpr hash function that allows using string literals directly in C++ switch-case statements!

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5y ago · Feb 22, 2021 4:01 PM

Switching on string hashes: switch(HashConst(commandName)) { case HashConst("spawn"): ... } makes text dispatchers O(1) jump tables!

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5y ago · Feb 23, 2021 10:01 PM

Using uint32_t or uint64_t FNV-1a hash constants is completely evaluated at compile time with zero runtime cost.

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