File: noexcept-swap.rst

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (13 lines) | stat: -rw-r--r-- 534 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 
.. title:: clang-tidy - performance-noexcept-swap

performance-noexcept-swap
=========================

The check flags user-defined swap functions not marked with ``noexcept`` or
marked with ``noexcept(expr)`` where ``expr`` evaluates to ``false``
(but is not a ``false`` literal itself).

When a swap function is marked as ``noexcept``, it assures the compiler that
no exceptions will be thrown during the swapping of two objects, which allows
the compiler to perform certain optimizations such as omitting exception
handling code.