Return true if ch is in the character set.
Synopses
Return true if ch is in the character set.
constexpr
bool
operator()(char ch) const noexcept;
Return true if ch is in the character set.
constexpr
bool
operator()(unsigned char ch) const noexcept;
Return Value
true
if ch
is in the set.
Parameters
Name |
Description |
ch |
The character to test. |
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