diff options
author | Stephan Bergmann <sbergman@redhat.com> | 2019-11-30 17:48:32 +0100 |
---|---|---|
committer | Stephan Bergmann <sbergman@redhat.com> | 2019-12-01 14:57:16 +0100 |
commit | 7e403195e574be5174815a51cf5c42f06f76a87a (patch) | |
tree | c6147bcac095cd387f06dee63a25e15db6ca84c6 /emfio/source | |
parent | 7b3190eda387bcd897095205732f6752dedf01ef (diff) |
Introduce o3tl::optional as an alias for std::optional
...with a boost::optional fallback for Xcode < 10 (as std::optional is only
available starting with Xcode 10 according to
<https://en.cppreference.com/w/cpp/compiler_support>, and our baseline for iOS
and macOS is still Xcode 9.3 according to README.md). And mechanically rewrite
all code to use o3tl::optional instead of boost::optional.
One immediate benefit is that disabling -Wmaybe-uninitialized for GCC as per
fed7c3deb3f4ec81f78967c2d7f3c4554398cb9d "Slience bogus
-Werror=maybe-uninitialized" should no longer be necessary (and whose check
happened to no longer trigger for GCC 10 trunk, even though that compiler would
still emit bogus -Wmaybe-uninitialized for uses of boost::optional under
--enable-optimized, which made me ponder whether this switch from
boost::optional to std::optional would be a useful thing to do; I keep that
configure.ac check for now, though, and will only remove it in a follow up
commit).
Another longer-term benefit is that the code is now already in good shape for an
eventual switch to std::optional (a switch we would have done anyway once we no
longer need to support Xcode < 10).
Only desktop/qa/desktop_lib/test_desktop_lib.cxx heavily uses
boost::property_tree::ptree::get_child_optional returning boost::optional, so
let it keep using boost::optional for now.
After a number of preceding commits have paved the way for this change, this
commit is completely mechanical, done with
> git ls-files -z | grep -vz -e '^bin/find-unneeded-includes$' -e '^configure.ac$' -e '^desktop/qa/desktop_lib/test_desktop_lib.cxx$' -e '^dictionaries$' -e '^external/' -e '^helpcontent2$' -e '^include/IwyuFilter_include.yaml$' -e '^sc/IwyuFilter_sc.yaml$' -e '^solenv/gdb/boost/optional.py$' -e '^solenv/vs/LibreOffice.natvis$' -e '^translations$' -e '\.svg$' | xargs -0 sed -i -E -e 's|\<boost(/optional)?/optional\.hpp\>|o3tl/optional.hxx|g' -e 's/\<boost(\s*)::(\s*)(make_)?optional\>/o3tl\1::\2\3optional/g' -e 's/\<boost(\s*)::(\s*)none\>/o3tl\1::\2nullopt/g'
(before committing include/o3tl/optional.hxx, and relying on some GNU features).
It excludes some files where mention of boost::optional et al should apparently
not be changed (and the sub-repo directory stubs). It turned out that all uses
of boost::none across the code base were in combination with boost::optional, so
had all to be rewritten as o3tl::nullopt.
Change-Id: Ibfd9f4b3d5a8aee6e6eed310b988c4e5ffd8b11b
Reviewed-on: https://gerrit.libreoffice.org/84128
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Diffstat (limited to 'emfio/source')
-rw-r--r-- | emfio/source/reader/wmfreader.cxx | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/emfio/source/reader/wmfreader.cxx b/emfio/source/reader/wmfreader.cxx index 58c4d971cb49..a070d8cfbea3 100644 --- a/emfio/source/reader/wmfreader.cxx +++ b/emfio/source/reader/wmfreader.cxx @@ -21,7 +21,7 @@ #include <emfreader.hxx> #include <memory> -#include <boost/optional.hpp> +#include <o3tl/optional.hxx> #include <rtl/crc.h> #include <rtl/tencinfo.h> #include <sal/log.hxx> @@ -1489,10 +1489,10 @@ namespace emfio auto nEnd = nPos + pStm->remainingSize(); Point aWinOrg(0,0); - boost::optional<Size> aWinExt; + o3tl::optional<Size> aWinExt; Point aViewportOrg(0,0); - boost::optional<Size> aViewportExt; + o3tl::optional<Size> aViewportExt; if (nEnd - nPos) { |