std::exception::exception
From cppreference.com
(1) | ||
exception() throw(); |
(until C++11) | |
exception() noexcept; |
(since C++11) | |
(2) | ||
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)Parameters
other | - | another exception to assign the contents of |
Notes
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.