Difference between revisions of "cpp/io/io errc/make error condition"
From cppreference.com
(c++14 (noexcept, implemented that way by every C++11 anyway)) |
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#include <iostream> | #include <iostream> | ||
#include <system_error> | #include <system_error> | ||
| + | #include <string> | ||
int main() | int main() | ||
Revision as of 09:39, 28 March 2014
| Defined in header <ios>
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| std::error_condition make_error_condition( std::io_errc e ); |
(since C++11) | |
Constructs an std::error_condition object from a value of type std::io_errc as if by return std::error_condition(static_cast<int>(e), std::iostream_category()).
Contents |
Parameters
| e | - | error code number |
Return value
A value of type std::error_condition that holds the error code number from e associated with the error category "iostream".
Exceptions
noexcept specification:
noexcept
Example
Run this code
#include <iostream> #include <system_error> #include <string> int main() { std::error_condition ec = std::make_error_condition(std::io_errc::stream); std::cout << "error condition for io_errc::stream has value " << ec.value() << "\nand message \"" << ec.message() << "\"\n"; }
Output:
error condition for io_errc::stream has value 1 and message "unspecified iostream_category error"
See also
| (C++11) |
holds a portable error code (class) |
| (C++11) |
the IO stream error codes (enum) |
