mirror of https://github.com/OpenRCT2/OpenRCT2.git
Place constexpr functions in anonymous namespace (#10651)
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@ -51,26 +51,29 @@ const constexpr auto ror32 = ror<uint32_t>;
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const constexpr auto rol64 = rol<uint64_t>;
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const constexpr auto ror64 = ror<uint64_t>;
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constexpr bool is_power_of_2(int v)
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namespace
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{
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return v && ((v & (v - 1)) == 0);
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}
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[[maybe_unused]] constexpr bool is_power_of_2(int v)
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{
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return v && ((v & (v - 1)) == 0);
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}
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// Rounds an integer down to the given power of 2. y must be a power of 2.
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constexpr int floor2(const int x, const int y)
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{
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if (!is_power_of_2(y))
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throw std::logic_error("floor2 should only operate on power of 2");
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return x & ~(y - 1);
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}
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// Rounds an integer down to the given power of 2. y must be a power of 2.
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[[maybe_unused]] constexpr int floor2(const int x, const int y)
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{
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if (!is_power_of_2(y))
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throw std::logic_error("floor2 should only operate on power of 2");
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return x & ~(y - 1);
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}
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// Rounds an integer up to the given power of 2. y must be a power of 2.
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constexpr int ceil2(const int x, const int y)
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{
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if (!is_power_of_2(y))
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throw std::logic_error("ceil2 should only operate on power of 2");
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return (x + y - 1) & ~(y - 1);
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}
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// Rounds an integer up to the given power of 2. y must be a power of 2.
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[[maybe_unused]] constexpr int ceil2(const int x, const int y)
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{
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if (!is_power_of_2(y))
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throw std::logic_error("ceil2 should only operate on power of 2");
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return (x + y - 1) & ~(y - 1);
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}
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} // namespace
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// Gets the name of a symbol as a C string
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#define nameof(symbol) #symbol
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