ios_base& uppercase ( ios_base& str );

<ios>

Generate upper-case letters

Sets the uppercase format flag for the str stream.

When the uppercase format flag is set, uppercase (capital) letters are used instead of lowercase for representations on insert operations involving stream-generated letters, like some hexadecimal representations and numerical base prefixes.

This flag can be unset with the nouppercase manipulator, not forcing the use of uppercase for generated letters.

The uppercase flag is not set in standard streams on initialization.

Parameters

str

Stream object where to apply.
Because this function is a manipulator, it is designed to be used alone with no arguments in conjunction with the insertion (<<) and extraction (>>) operations on streams (see example below).

Return Value

Example

// modify uppercase flag
#include <iostream>
using namespace std;

int main () {
  cout << showbase << hex;
  cout << uppercase << 77 << endl;
  cout << nouppercase << 77 << endl;
  return 0;
}

The execution of this example displays something similar to:

0X4D
0x4d

See also