ios_base& noshowbase ( ios_base& str );

<ios>

Do not show numerical base prefixes

Clears the showbase format flag for the str stream.

When the showbase format flag is not set, numerical values are insterted into the stream without prefixing them with their respective numerical base prefix (i.e., 0x for hexadecimal values, 0 for octal values and no prefix for decimal-base values).

This flag can be set with the showbase manipulator, which forces the prefixing of numerical values with their respective numerical base prefix.

The showbase 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 showbase flag
#include <iostream>
using namespace std;

int main () {
  int n;
  n=20;
  cout << hex << noshowbase << n << endl;
  cout << hex << showbase << n << endl;
  return 0;
}

The execution of this example displays something similar to:

14
0x14

See also