std::make_error_condition(std::errc)

 

C++

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General utilities Date and time Function objects Formatting library (C++20) bitset hash (C++11) Relational operators (deprecated in C++20) rel_ops::operator!=rel_ops::operator> rel_ops::operator<=rel_ops::operator>= Integer comparison functions cmp_equalcmp_lesscmp_less_than (C++20)(C++20)(C++20)    cmp_not_equalcmp_greatercmp_greater_than (C++20)(C++20)(C++20) in_range (C++20) Swap and type operations swap ranges::swap (C++20) exchange (C++14) declval (C++11) to_underlying (C++23) forward (C++11) forward_like (C++23) move (C++11) move_if_noexcept (C++11) as_const (C++17) Common vocabulary types pair tuple (C++11) optional (C++17) any (C++17) variant (C++17) tuple_size (C++11) tuple_element (C++11) apply (C++17) make_from_tuple (C++17) expected (C++23) Elementary string conversions to_chars (C++17) from_chars (C++17) chars_format (C++17)

 

Diagnostics library

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std::errc

Non-member functions

make_error_code

make_error_condition

Helper classes

is_error_condition_enum

 

Defined in header <system_error>
std::error_condition make_error_condition( std::errc e ) noexcept;		(since C++11)

Creates an error condition for an errc value e. Sets the error code to int(e) and error category to std::generic_category.

Parameters

e

-

standard error code

Return value

Error condition for e.

Example

Run this code

#include <system_error>
#include <string>
#include <iostream>
 
int main()
{
    auto err = std::make_error_condition(std::errc::invalid_argument);
    std::cout << err.message() << '\n';
}

Possible output:

Invalid argument