mirror of https://github.com/OpenRCT2/OpenRCT2.git
Optimize bitscanforward using intrinsic function
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@ -143,11 +143,16 @@ int bitscanforward(int source)
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{
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{
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int i;
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int i;
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#if _MSC_VER >= 1400 // Visual Studio 2005
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_BitScanForward(&i, source);
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return i;
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#else
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for (i = 0; i < 32; i++)
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for (i = 0; i < 32; i++)
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if (source & (1 << i))
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if (source & (1 << i))
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return i;
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return i;
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return -1;
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return -1;
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#endif
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}
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}
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int bitcount(int source)
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int bitcount(int source)
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