So many warnigns

[surge-synthesizer]

So many warnigns

[baconpaul]

Even if you're willing to look up what behavior your implementation defines, multi-character constants will still vary with endianness.

Better to use a (POD) struct { char[4] }; ... and then use a UDL like "WAVE"_4cc to easily construct instances of that class
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answered May 25 '14 at 4:45

o11c
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Any chance for a quick UDL _4cc implementation example? – fuzzyTew May 11 at 14:28
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@fuzzyTew: constexpr std::uintmax_t operator ""_cc (char const * cc, std::size_t size) { std::uintmax_t val = 0; for (int i = 0; i != size; ++i) { val <<= 8; val += cc[i]; } return val; } – imix Sep 4 at 17:15 

from https://stackoverflow.com/questions/7755202/multi-character-constant-warnings