{{keywords>wiki library source code example reference}}
===== toupper ======
<code cpp>
    #include <cctype>
    int toupper( int char );
</code>
    Returns upper case type of the character

===== cpp Sourcecode Example =====
<code cpp>
#include <iostream> /* including standard library */
#include <cctype>

using namespace std;
int main ( void )
{
  /* convert the Chars "i" and "t" uppercase  */
  cout << static_cast<char>(toupper('i')) << " whant " << static_cast<char>(toupper('t')) << "his in uppercase" << endl;

return 0;
}
</code>
==== output ====
    output:
    I whant This in uppercase