noshowpoint


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

Do not show decimal point

Clears the showpoint format flag for the str stream.

When the showpoint format flag is not set, the decimal point is only written when necessary for non-whole floating-point values inserted into the stream.

This flag can be set with the showpoint manipulator. When the showpoint format flag is set, the decimal point is always written for floating point values insterted into the stream, even for whole numbers.

The showpoint 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

A reference to the stream object.

Example

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

int main () {
  double a, b, pi;
  a=30.0;
  b=10000.0;
  pi=3.1416;
  cout.precision (5);
  cout << noshowpoint << a << '\t' << b << '\t' << pi << endl;
  cout <<   showpoint << a << '\t' << b << '\t' << pi << endl;
  return 0;
}


The execution of this example displays something similar to:
30      10000   3.1416
30.000  10000.  3.1416


See also