C++ Manipulator noshowpos

C++ manipulator noshowpos function is used to clear the showpos format flag for the str stream.

When we set noshowpos format flag, then it disables the display of the '+' sign in non-negative integer (including zero) output.

Syntax

Parameter

str: stream object whose format flag is affected.

Return value

It returns argument str.

Data Races

Data races may cause when modifies str concurrent access to the same stream object.

Exceptions

str is in a valid state, if an exception is thrown.

Example 1

Let's see the simple example to demonstrate the use of noshowpos:

#include <iostream>
using namespace std;

int main () {
   int p = 1;
   int z = 0;
   int n = -1;
   cout << showpos   << p << '\t' << z << '\t' << n << '\n';
   cout << noshowpos << p << '\t' << z << '\t' << n << '\n';
   return 0;
}

Output:

+1	+0	-1
 1	 0	-1

Example 2

Let's see another simple example:

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

int main () {
  int n;
  n=75;
  cout << showpos << n << endl;
  cout << noshowpos << n << endl;
  return 0;
}

Output:

+75
75

Example 3

Let's see another simple example:

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

int main () {
  int n;
  cout<<"Enter Number: ";
  cin>>n;
  cout << showpos << n << endl;
  cout << noshowpos << n << endl;
  return 0;
}

Output: