exception() throw();
(until C++11)exception() noexcept;
(since C++11)exception( const exception& other ) throw();
(until C++11)exception( const exception& other ) noexcept;
(since C++11)Constructs new exception object.
1)Default constructor.
what()returns an implementation-defined string.
2)Copy constructor. Initializes the contents with those of
other. If
*thisand
otherboth have dynamic type
std::exception
then
std::strcmp(what(), other.what()) == 0.
[edit] Parameters other - another exception to assign the contents of [edit] NotesBecause copying std::exception is not permitted to throw exceptions, when derived classes (such as std::runtime_error) have to manage a user-defined diagnostic message, it is typically implemented as a copy-on-write string.
The Microsoft implementation includes non-standard constructors taking strings thus allowing instances to be thrown directly with a meaningful error message. The nearest standard equivalents are std::runtime_error or std::logic_error.
[edit] Defect reportsThe following behavior-changing defect reports were applied retroactively to previously published C++ standards.
DR Applied to Behavior as published Correct behavior LWG 471 C++98 there is no requirement on what() of the exception copy addedRetroSearch is an open source project built by @garambo | Open a GitHub Issue
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