std::setiosflags (3) Linux Manual Page

std::setiosflags – std::setiosflags

Synopsis

Defined in header <iomanip>

/*unspecified*/ setiosflags( std::ios_base::fmtflags mask );

When used in an expression out << setiosflags(mask) or in >> setiosflags(mask), sets all format flags of the stream out or in as specified by the mask.

Parameters

mask – bitmask of the flags to set

Return value

Returns an object of unspecified type such that if str is the name of a stream of type std::basic_ostream<CharT, Traits> or std::basic_istream<CharT, Traits>, then the expression str << setiosflags(mask) or str >> setiosflags(mask) behaves as if the following code was executed :

    str.setf(mask);

Example

// Run this code

#include <iostream>

#include <iomanip>
int main()

{
    std::cout << std::resetiosflags(std::ios_base::dec)
              << std::setiosflags(std::ios_base::hex | std::ios_base::uppercase | std::ios_base::showbase) << 42 << '\n';
}

Output:

  0X2A

See also

              sets specific format flag
setf (public member function of std::ios_base)
              clears the specified ios_base flags
resetiosflags (function)