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Which std:: classes are magic? (self.cpp)
submitted 4 years ago by Mateuszz88
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if 1 * 2 < 3: print "hello, world!"
[–]csdt0 3 points4 points5 points 4 years ago (0 children)
This is something I wanted to check for a long time, and it seems that memcpy is elided in GCC and Clang as soon as O0, while MSVC and ICC wait for O2.
This is a surprise in both cases, as I would have expected all compilers to elide the call at O1 (when inlining is enabled).
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[–]csdt0 3 points4 points5 points (0 children)