smanip setbase ( int base );

<iomanip>

Set basefield flag

Sets the basefield format flag to one of its possible values: hex, dec or oct depending on the value of the base parameter.

The basefield flag is used in certain input and output operations to determine the numeric base to be used to interpret numeric values.

This manipulator is declared in header <iomanip>, along with the other parameterized manipulators: resetiosflags, setiosflags, setfill, setprecision and setw. This header file declares the implementation-specific smanip type, plus any additional operator overload function needed to allow these manipulators to be inserted and extracted to/from streams with their parameters.

Parameters

base

Numerical radix to be used.
This value should be 8, 10 or 16.

Return Value

Example

// setbase example
#include <iostream>
#include <iomanip>
using namespace std;

int main () {
  cout << setbase (16);
  cout << 100 << endl;
  return 0;
}

This code uses the setbase manipulator to set hexadecimal as the basefield flag. The output of this example is the hexadecimal value of 100, i.e. 64.

See also