std::basic_istream::peek

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C++ Standard Library
Language Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++11) Atomic operations library (C++11) Thread support library (C++11)
Input/output library
basic_streambuf basic_filebuf basic_stringbuf ios_base basic_ios basic_istream basic_ostream basic_iostream basic_ifstream basic_ofstream basic_fstream basic_istringstream basic_ostringstream basic_stringstream I/O manipulators C-style I/O
std::basic_istream
Member functions basic_istream::basic_istream basic_istream::~basic_istream Formatted input basic_istream::operator>> Unformatted input basic_istream::get basic_istream::peek basic_istream::unget basic_istream::putback basic_istream::getline basic_istream::ignore basic_istream::read basic_istream::readsome basic_istream::gcount Positioning basic_istream::tellg basic_istream::seekg Miscellaneous basic_istream::sync Member classes basic_istream::sentry

basic_istream& unget();

Makes the last extracted character available again. Effectively calls rdbuf()->sungetc(). If good() != true, setstate(failbit) is called and the function returns.

Contents 1 Parameters 2 Return value 3 Example 4 See also

[edit] Parameters

(none)

[edit] Return value

*this

[edit] Example

This section is incomplete

[edit] See also

get	extracts characters (public member function)
peek	reads the next character without extracting it (public member function)
putback	puts character into input stream (public member function)