Function to_upper

Return c converted to uppercase

Synopsis

Declared in header </boost/url/grammar/ci_string.hpp#L83[boost/url/grammar/ci_string.hpp,window=blank_]>

constexpr
char
to_upper(char c) noexcept;

Description

This function returns the character, converting it to uppercase if it is lowercase. The function is defined only for low-ASCII characters.

Example

assert( to_upper( 'a' ) == 'A' );

Exception Safety

Throws nothing.

Return Value

char

Parameters

Name Type

c

char