std::iswalnum

std::iswalnum

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

Checks if the given wide character is an alphanumeric character, i.e. either a number (0123456789), an uppercase letter (ABCDEFGHIJKLMNOPQRSTUVWXYZ), a lowercase letter (abcdefghijklmnopqrstuvwxyz) or any alphanumeric character specific to the current locale.

Parameters

ch - wide character

Return value

Non-zero value if th