std::error_category::message

 

C++

Language

Concepts

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)

 

Utilities library

Type support (basic types, RTTI, type traits)

Dynamic memory management

Error handling

Program utilities

Variadic functions

Date and time

Function objects

initializer_list (C++11)

bitset

hash (C++11)

Relational operators

rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>=

Pairs and tuples

pair

tuple (C++11)

piecewise_construct_t (C++11)

piecewise_construct (C++11)

Swap, forward and move

swap

forward (C++11)

move (C++11)

move_if_noexcept (C++11)

declval (C++11)

 

Error handling

Exception handling

exception

uncaught_exception

exception_ptr (C++11)

make_exception_ptr (C++11)

current_exception (C++11)

rethrow_exception (C++11)

nested_exception (C++11)

throw_with_nested (C++11)

rethrow_if_nested (C++11)

Exception handling failures

terminate

terminate_handler

get_terminate (C++11)

set_terminate

unexpected (deprecated)

bad_exception

unexpected_handler (deprecated)

get_unexpected (C++11)(deprecated)

set_unexpected (deprecated)

Exception categories

logic_error

invalid_argument

domain_error

length_error

out_of_range

runtime_error

range_error

overflow_error

underflow_error

Error codes

Error codes

errno

Assertions

assert

system_error facility

error_category (C++11)

generic_category (C++11)

system_category (C++11)

error_condition (C++11)

errc (C++11)

error_code (C++11)

system_error (C++11)

 

std::error_category

Member functions

error_category::error_category

error_category::~error_category

error_category::name

error_category::default_error_condition

error_category::equivalent

error_category::message

error_category::operator== error_category::operator!= error_category::operator<

 

virtual std::string message( int condition ) const = 0;		(since C++11)

Returns a string describing the given error condition for the error category represented by *this.

Parameters

condition

-

specifies the error condition to describe

Return value

A string describing the given error condition.

Exceptions

noexcept specification:  

noexcept

  (since C++11)