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