std:: error_code
From cppreference.com
C++
Utilities library
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Diagnostics library
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std::error_code
| Member functions | ||||
| Modifiers | ||||
| Observers | ||||
| Non-member functions | ||||
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(until C++20)
(until C++20)
(C++20)
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| Helper classes | ||||
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Defined in header
<system_error>
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class
error_code
;
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(since C++11) | |
std::error_code
represents a platform-dependent error code value. Each
std::error_code
object holds an error code value originating from the operating system or some low-level interface and a pointer to an object of type
std::error_category
, which corresponds to the said interface. The error code values are not required to be unique across different error categories.
Member functions
|
constructs an error code
(public member function) |
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assigns another error code
(public member function) |
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assigns another error code
(public member function) |
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Modifiers |
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sets the
error_code
to value
0
in
system_category
(public member function) |
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Observers |
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obtains the value of the
error_code
(public member function) |
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obtains the error_category for this error_code
(public member function) |
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obtains the
error_condition
for this
error_code
(public member function) |
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obtains the explanatory string for this
error_code
(public member function) |
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checks if the value is non-zero
(public member function) |
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Non-member functions
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(removed in C++20)
(removed in C++20)
(C++20)
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compares two
error_code
s
(function) |
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outputs the value and the category name to an output stream
(function) |
Helper classes
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(C++11)
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identifies a class as an
error_code
enumeration
(class template) |
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(C++11)
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hash support for
std::error_code
(class template specialization) |
See also
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(C++11)
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holds a portable error code
(class) |
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(C++11)
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base class for error categories
(class) |
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(C++11)
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creates error code value for
errc
enum
e
(function) |
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