(C++) std::setw

 

std::setw (an abbreviation of 'set width') is an STL std::iostream manipulator to set the width of the next output.

 

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#include <iomanip> #include <iostream> int main() {   const int value = 123;   std::cout     << "12345678\n"     << std::setw(8) << value << '\n'     << std::setfill('x') << std::setw(8) << value << '\n'; }

 

Screen output:

 

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12345678      123 xxxxx123

 

 

 

 

 

External links

 

• Cplusplus.com page about std::setw