std::exception::exception
| (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.
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