std::iswalpha

std::iswalpha

Defined in header <cwctype>
int iswalpha( std::wint_t ch );

Checks if the given wide character is an alphabetic character, i.e. either an uppercase letter (ABCDEFGHIJKLMNOPQRSTUVWXYZ), a lowercase letter (abcdefghijklmnopqrstuvwxyz) or any alphabetic character specific to the current locale.

Parameters

ch - wide character

Return value

Non-zero value if the wide character is a alphabetic charact