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std::error_code

From cppreference.com
< cpp‎ | error
 
 
 
 
 
Defined in header <system_error>
class error_code;
(since C++11)

std::error_code is a platform-dependent error code. Each std::error_code object holds a pair of error code 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 may be not unique across different error categories.

Contents

[edit] Member functions

constructs an error code
(public member function) [edit]
assigns another error code
(public member function) [edit]
assigns another error code
(public member function) [edit]
Modifiers
sets the error_code to value 0 in generic_category
(public member function) [edit]
Observers
obtains the value of the error_code
(public member function) [edit]
obtains the error_category for this error_code
(public member function) [edit]
obtains the error_condition for this error_code
(public member function) [edit]
obtains the explanatory string for this error_code
(public member function) [edit]
checks if the value is non-zero
(public member function) [edit]

[edit] Non-member functions

compares two error_codes
(function) [edit]
outputs the value and the category name to an output stream
(function) [edit]

[edit] Helper classes

identifies a class as an error_code enumeration
(class template) [edit]
hash support for std::error_code
(class template specialization) [edit]

[edit] See also

holds a portable error code
(class) [edit]
base class for error categories
(class) [edit]