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Saturday, 17 March 2012

islower example in C

Header file:

    int islower (int input)

    checks whether the given input is a lower case character or not.

Return Value:
    TRUE(a non-zero value) on success
    0 on failure

islower function C example

  int main() {
       char a;
       printf("Enter a character:");
       a = getchar();

       if (islower(a))
         printf("The given character is in lower case\n");
         printf("The given character is not in lower case\n");

       printf("Return value from islower:%d\n", islower(a));
       return 0;

  jp@jp-VirtualBox:~/$ ./a.out
  Enter a character:a
  The given character is in lower case
  Return value from islower: 512

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