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===== Overview ===== Exceptions, with emphasis on C++11 enhancements. Links: * [[| "Exceptions"]] * [[|throw-expression]] * [[|try-catch block]] * [[|function-try-block]] * [[|noexcept specifier]] * [[|noexcept operator]] * [[|Dynamic exception specification (until C++17)]] ===== Error handling possibilities ===== * Terminate the program. * Return an error value. * Return a legal value and leave the program in an "error state" (''errno''). * Call an error-handler routine. ===== Guarantees ===== C++ standard library provides one of the following guarantees for every library operation: * //basic// for all operations: The basic invariants of all objects are maintained, and no resources, such as memory, are leaked. In particular, the basic invariants of every built-in and standard-library type guarantee that you can destroy an object or assign to it after every standard-library operation (§iso. * //strong// for key operations: in addition to providing the basic guarantee, either the operation succeeds, or it has no effect. This guarantee is provided for key operations, such as ''push_back()'', single-element ''insert()'' on a list, and ''uninitialized_copy()''. * //nothrow// for some operations: in addition to providing the basic guarantee, some operations are guaranteed not to throw an exception. This guarantee is provided for a few simple operations, such as ''swap()'' of two containers and ''pop_back()''.

c_exceptions.1517569330.txt.gz · Last modified: 2018/02/02 11:02 by rpjday