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!@#
Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready.
- Difference between user defined function and library function in C/C++
- How to call some function before main() function in C++?
- Function Overloading vs Function Overriding in C++
- How to call function within function in C or C++
- Difference between Virtual function and Pure virtual function in C++
- What happens when a virtual function is called inside a non-virtual function in C++
- div() function in C++
- log() function in C++
- exp() function C++
- fma() function in C++
- fegetexceptflag() function in C/C++
- fegetenv() function in C/C++
- wctrans() function in C/C++
- wmemcpy() function in C/C++
- wmemmove() function in c++
- tolower() function in C
- scalbn() function in C++
- localtime() function in C++
- clock() function in C/C++
- nearbyint() function in 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.