std::ios_base::failure

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
ios_base::failure
Member functions failure::failure

Defined in header <ios>
class failure : public std::exception;		(pre-C++11 version)
class failure : public std::system_error;		(C++11 version)

The class std::ios_base::failure defines an exception object that is thrown on failure by the functions in the Input/Output library.

[edit] Member functions

(constructor)	constructs the exception object (public member function)