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Commit 2ccfb71d authored by Max Kellermann's avatar Max Kellermann
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util/CharUtil: add ToLowerASCII()

parent e8a5a9b1
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src/util/CharUtil.hxx
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......@@ -126,4 +126,17 @@ ToUpperASCII(char ch)
: ch;
}
/**
* Convert the specified ASCII character (0x00..0x7f) to lower case.
* Unlike toupper(), it ignores the system locale.
*/
constexpr
static inline char
ToLowerASCII(char ch)
{
return ch >= 'A' && ch <= 'Z'
? (ch + ('a' - 'A'))
: ch;
}
#endif
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