The iswlower() is a built-in function in C/C++ which checks if the given wide character is a lowercase character or not. It is defined within the cwctype header file of C++.
Parameters: The function accepts a single mandatory parameter ch which specifies the wide character which we have to check that if it is a lowercase character or not.
Return Value: The function returns two values as shown below.
- If the parameter ch, is a lowercase character, then a non-zero value is returned.
- If it is not a lowercase character then 0 is returned.
Below programs illustrates the above function.
a is a lowercase character A is not a lowercase character
q is a lowercase character ? is not a lowercase character
- Function Overloading vs Function Overriding in C++
- What happens when a virtual function is called inside a non-virtual function in C++
- fma() function in C++
- div() function in C++
- exp() function C++
- log() function in C++
- arc function in C
- wcstoul() function in C/C++
- mbsinit() Function in C/C++
- wcrtomb() function in C/C++
- fegetexceptflag() function in C/C++
- vswprintf() function in C/C++
- wmemchr() function in C/C++
- bit_and function in C++
- wmemcmp() function in C/C++
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to email@example.com. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.