cpp/error/error code/error code

Constructs new error code.

@1@ Constructs error code with default value. Equivalent to.

@2@ Constructs error code with as the platform-dependent error code and  as the corresponding error category.

@3@ Constructs error code from an error code enum. Equivalent to, where is only found by argument-dependent lookup. .

@4,5@ Implicitly defined copy constructor and move constructor. Initializes the error code with the contents of the.