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util/CharUtil: add IsLowerAlphaNumericASCII()

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This commit is contained in:
Max Kellermann 2022-09-08 11:12:23 +02:00 committed by Max Kellermann
parent bbc82a9892
commit 485ad583a0
1 changed files with 7 additions and 1 deletions
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8
src/util/CharUtil.hxx
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@ -1,5 +1,5 @@
/* /*
* Copyright 2011-2020 Max Kellermann <max.kellermann@gmail.com> * Copyright 2011-2022 Max Kellermann <max.kellermann@gmail.com>
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions * modification, are permitted provided that the following conditions
@ -123,6 +123,12 @@ IsAlphaNumericASCII(char ch) noexcept
return IsAlphaASCII(ch) || IsDigitASCII(ch); return IsAlphaASCII(ch) || IsDigitASCII(ch);
} }
constexpr bool
IsLowerAlphaNumericASCII(char ch) noexcept
{
return IsLowerAlphaASCII(ch) || IsDigitASCII(ch);
}
/** /**
* Convert the specified ASCII character (0x00..0x7f) to upper case. * Convert the specified ASCII character (0x00..0x7f) to upper case.
* Unlike toupper(), it ignores the system locale. * Unlike toupper(), it ignores the system locale.