towlower

Header file:

    wctype.h

Synopsis:

    wint_t towlower (wint_t input)

Description:

    If the input is in uppercase letter, it returns the corresponding lower-case letter.  Otherwise input is returned unchanged.

Sample program for towlower in C:

---

  #include <stdio.h>

  #include <wchar.h>

  #include <wctype.h>

  int main() {

        wint_t wide_char;

        char input;

        printf("Enter your input:");

        input = getchar();

        /* btowc -Converts single byte to wide character format */

        wide_char = btowc(input);

        printf("Return value: %d\n", towlower(wide_char));

        return 0;

  }

  Output:

  Enter your input:A
  Result for the given input: a