The iswlower() function is defined in the header file <cwctype.h>.
int iswlower(wchar_t rs);
wchar_t rs – Checks the given character is in lower case or not.
The function returns two values:
- Zero: if rs is non - lowercase character.
- Non Zero: if rs is lowercase character.
Use of function
The iswlower() is built- in function in C++, which is used to check the given character, rs is in lower case or not .