std::basic_ostream<CharT,Traits>::seekp

Sets the output position indicator of the current associated streambuf object.

# Declarations

basic_ostream& seekp( pos_type pos );

basic_ostream& seekp( off_type off, std::ios_base::seekdir dir );

# Parameters

• pos: absolute position to set the output position indicator to
• off: relative position (positive or negative) to set the output position indicator to
• dir: defines base position to apply the relative offset to. It can be one of the following constants: Constant Explanation beg the beginning of a stream end the ending of a stream cur the current position of stream position indicator

# Return value

*this

# Example

#include <iostream>
#include <sstream>
 
int main()
{
    std::ostringstream os("hello, world");
    os.seekp(7);
    os << 'W';
    os.seekp(0, std::ios_base::end);
    os << '!';
    os.seekp(0);
    os << 'H';
    std::cout << os.str() << '\n';
}

# Defect reports

# See also

• tellp
• tellg
• seekg