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sytranvn/utils.h

Created August 18, 2020 03:52
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Interesting C++ utils from V8 source code
Raw
utils.h
// v8/utils
inline int HexValue(uc32 c) {
c -= '0';
if (static_cast<unsigned>(c) <= 9) return c;
c = (c | 0x20) - ('a' - '0'); // detect 0x11..0x16 and 0x31..0x36.
if (static_cast<unsigned>(c) <= 5) return c + 10;
return -1;
}
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