The towlower() is a built-in function in C/C++ which converts the given wide character into lowercase. It is defined within the cwctype header file of C++.
- It is a function in header file
, so it is mandatory to use this header file if using this function
- It is the wide-character equivalent of the tolower() function.
wint_t towlower( wint_t ch )
Parameter: The function accepts a single mandatory parameter ch which specifies the wide character which we have to convert into lowercase.
Return Value: The function returns the lowercase equivalent to c, if such value exists, or c (unchanged) otherwise. The value is returned as a wint_t value that can be implicitly casted to wchar_t.
Below programs illustrates the above function.
The lowercase version of "GeeksforGeeks" is geeksforgeeks
The lowercase version of "hello Ishwar 123!@#" is hello ishwar 123!@#
- 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++
- log() function in C++
- exp() function C++
- towctrans() function in C/C++
- atan2() function in C++ STL
- bitset all() function in C++ STL
- iswcntrl() function in C/C++
- wmemcmp() function in C/C++
- mktime() function in C++ STL
- bitset set() function in C++ STL
- wcstoul() function in C/C++
- wcrtomb() 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 firstname.lastname@example.org. 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.