d335d73889
This adds a noexcept-specifier to each constructor and assignment operator of std::reverse_iterator so that they are noexcept when the corresponding operation on the underlying iterator is noexcept. The std::reverse_iterator class template already requires that the operations on the underlying type are valid, so we don't need to use the std::is_nothrow_xxx traits to protect against errors when the expression isn't even valid. We can just use a noexcept operator to test if the expression can throw, without the overhead of redundantly checking if the initialization/assignment would be valid. Signed-off-by: Jonathan Wakely <jwakely@redhat.com> libstdc++-v3/ChangeLog: PR libstdc++/94418 * include/bits/stl_iterator.h (reverse_iterator): Use conditional noexcept on constructors and assignment operators. * testsuite/24_iterators/reverse_iterator/noexcept.cc: New test.
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.