internal


manipulator function
<ios>
ios_base& internal ( ios_base& str );

Adjust field by inserting characters at an internal position

Sets the adjustfield format flag for the str stream to internal.

When adjustfield is set to internal, the output is padded to the field width by inserting fill characters at a specified internal point, which for numerical values is between the sign and/or numerical base and the number magnitude. For non-numerical values it is equivalent to right.

The adjustfield format flag can take any of the following values (each with its own manipulator):
flag valueeffect when set
internalthe output is padded to the field width by inserting fill characters at a specified internal point.
leftthe output is padded to the field width appending fill characters at the end.
rightthe output is padded to the field width by inserting fill characters at the beginning.


The adjustfield flag is set to right in standard streams on initialization with the default locale.

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

A reference to the stream object.

Example

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// modify adjustfield using manipulators
#include <iostream>
using namespace std;

int main () {
  int n;
  n=-77;
  cout.width(6); cout << internal << n << endl;
  cout.width(6); cout << left << n << endl;
  cout.width(6); cout << right << n << endl;
  return 0;
}


The execution of this example displays something similar to:
-   77
-77
   -77


See also

left Adjust output to the left (manipulator function)
right Adjust output to the right (manipulator function)
ios_base::flags Get/set format flags (public member function)
ios_base::setf Set specific format flags (public member function)
ios_base::unsetf Clear specific format flags (public member function)