< cpp‎ | error‎ | exception
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 *this and other both have dynamic type std::exception then std::strcmp(what(), other.what()) == 0. (since C++11)


other - another exception to assign the contents of


Because 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.