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std::basic_ostream::tellp(3) C++ Standard Libary std::basic_ostream::tellp(3) NAME std::basic_ostream::tellp - std::basic_ostream::tellp Synopsis pos_type tellp(); Returns the output position indicator of the current associated streambuf object. Behaves as UnformattedOutputFunction (except without actually (since C++11) performing output). After constructing and checking the sentry ob- ject, If fail()==true, returns pos_type(-1). Otherwise, returns rd- buf()->pubseekoff(0, std::ios_base::cur, std::ios_base::out). Parameters (none) Return value current output position indicator on success, pos_type(-1) if a failure occurs. Example // Run this code #include <iostream> #include <sstream> int main() { std::ostringstream s; std::cout << s.tellp() << '\n'; s << 'h'; std::cout << s.tellp() << '\n'; s << "ello, world "; std::cout << s.tellp() << '\n'; s << 3.14 << '\n'; std::cout << s.tellp() << '\n' << s.str(); } Output: 0 1 13 18 hello, world 3.14 See also seekp sets the output position indicator (public member function) tellg returns the input position indicator (public member function of std::basic_istream<CharT,Traits>) seekg sets the input position indicator (public member function of std::basic_istream<CharT,Traits>) http://cppreference.com 2022.07.31 std::basic_ostream::tellp(3)
NAME | Synopsis | Parameters | Return value | Example | Output: | See also
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