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

 

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basic_ostream& put( char_type ch );

Behaves as an UnformattedOutputFunction. After constructing and checking the sentry object, writes the character ch to the output stream.

If the output fails for any reason, sets badbit.

Parameters

ch

-

character to write

Return value

*this

Notes

This function is not overloaded for the types signedchar or unsignedchar, unlike the formatted operator<<.

Unlike formatted output functions, this function does not set the failbit if the output fails.

Example

Run this code

#include <fstream>#include <iostream>   int main(){std::cout.put('a');// normal usagestd::cout.put('\n');   std::ofstream s("/does/not/exist/"); s.clear();// pretend the stream is goodstd::cout<<"Unformatted output: "; s.put('c');// this will set badbit, but not failbitstd::cout<<" fail="<<bool(s.rdstate()& s.failbit);std::cout<<" bad="<< s.bad()<<'\n'; s.clear();std::cout<<"Formatted output: "; s <<'c';// this will set badbit and failbitstd::cout<<" fail="<<bool(s.rdstate()& s.failbit);std::cout<<" bad="<< s.bad()<<'\n';}

Output:

a Unformatted output: fail=0 bad=1 Formatted output: fail=1 bad=1

See also

operator<<(std::basic_ostream)	inserts character data or insert into rvalue stream (function template)
write	inserts blocks of characters (public member function)