{{keywords>wiki library source code example reference}}
====== tolower ======
<code c>
    #include <ctype.h>
    int tolower( int char );
</code>
    Returns lower case type of the character

===== C Sourcecode Example =====
<code c>
#include <stdio.h> /* including standard library */
//#include <windows.h> /* uncomment this for Windows */

#include <ctype.h>

int main ( void )
{
  char string[30];
  /* write the Chars "i" and "t" lowercase in the buffer "string" */
  sprintf(string,"%c WHANT %cHIS IN LOWERCASE",tolower('I'), tolower('T'));
  printf("%s\n",string);

return 0;
}
</code>
==== output ====
    output:
    user@host:~$ ./tolower
    i WHANT tHIS IN LOWERCASE