(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.
what()
returns an implementation-defined string.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.
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/error/exception/exception