xieite ::isalpha ()
Defined in header <xieite/data/isalpha.hpp>
An improved replacement and extension of
std ::isalpha ()
.Declarations
#0Checks if a single character is alphabetic.[[nodiscard ]]constexpr bool isalpha (xieite ::is_char auto c )noexcept ;
#1
Checks if a string consists only of alphabetic characters.template <xieite ::is_char Char ,typename Traits > [[nodiscard ]]constexpr bool isalpha (std ::basic_string_view <Char ,Traits >strv )noexcept ;
#2
Defers to #1 after deducingtemplate <xieite ::is_char Char ,typename Traits ,typename Alloc > [[nodiscard ]]constexpr bool isalpha (const std ::basic_string_view <Char ,Traits ,Alloc >& str )noexcept ;
Char
.#2
Defers to #1 after deducingtemplate <xieite ::is_char Char ,std ::size_t length > [[nodiscard ]]constexpr bool isalpha (const xieite ::paren <Char [length ]>& str )noexcept ;
Char
.Example
[View in Compiler Explorer]static_assert (xieite ::isalpha ('a' ));static_assert (not xieite ::isalpha ('0' ));