std::error_category::equivalent

From cppreference.com
 
 
Utilities library
Type support (basic types, RTTI, type traits)
Dynamic memory management
Error handling
Program utilities
Variadic functions
Date and time
Function objects
(C++11)
Relational operators
Optional and any
(C++17)
(C++17)
Pairs and tuples
(C++11)
(C++17)
Swap, forward and move
(C++14)
(C++11)
(C++11)
Type operations
(C++11)
(C++17)
 
 
 
virtual bool equivalent( int code,
                         const std::error_condition& condition ) const;
(1) (since C++11)
virtual bool equivalent( const std::error_code& code,
                         int condition ) const;
(2) (since C++11)

Checks whether error code is equivalent to an error condition for the error category represented by *this.

1) Equivalent to default_error_condition(code) == condition.
2) Equivalent to *this == code.category() && code.value() == condition.

[edit] Parameters

code - specifies the error code to compare
condition - specifies the error condition to compare

[edit] Return value

true if the error code is equivalent to the given error condition for the error category represented by *this, false otherwise.

[edit] Exceptions

noexcept specification:  
noexcept