std::basic_istream::seekg

From Cppreference

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& seekg( pos_type pos );
basic_istream& seekg( off_type& off, std::ios_base::seekdir dir);

Sets input position indicator of the current associated streambuf object. In case of failure, calls setstate(std::ios_base::failbit).

1) sets the input position indicator to absolute (relative to the beginning of the file) value pos. Specifically calls rdbuf()->pubseekpos(pos, std::ios_base::in).

2) sets the input position indicator to position off, relative to position, defined by dir. Specifically rdbuf()->pubseekoff(off, dir, std::ios_base::in).

Contents 1 Parameters 2 Return value 3 Example 4 See also

[edit] Parameters

pos	-	absolute position to set the input position indicator to.
off	-	relative position to set the input 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

[edit] Return value

*this

[edit] Example

This section is incomplete

[edit] See also

tellg	returns the input position indicator (public member function)
tellp	returns the output position indicator (public member function of std::basic_ostream)
seekp	sets the output position indicator (public member function of std::basic_ostream)