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code optimization #169

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cgiesselink opened this issue Jul 1, 2022 · 0 comments
Open

code optimization #169

cgiesselink opened this issue Jul 1, 2022 · 0 comments

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@cgiesselink
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lodepng/lodepng.cpp

Line 2420 in b4ed2cd

return r ^ 0xffffffffu;

r ^ 0xFFFFFFFFu is code for the 1'complement. Why not use the C/C++ 1'complement symbol '~' that the compiler could use best code implementation for used CPU?
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@cgiesselink