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authorStephan Bergmann <sbergman@redhat.com>2019-11-30 17:48:32 +0100
committerStephan Bergmann <sbergman@redhat.com>2019-12-01 14:57:16 +0100
commit7e403195e574be5174815a51cf5c42f06f76a87a (patch)
treec6147bcac095cd387f06dee63a25e15db6ca84c6 /basic/inc
parent7b3190eda387bcd897095205732f6752dedf01ef (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 'basic/inc')
-rw-r--r--basic/inc/pch/precompiled_sb.hxx2
1 files changed, 1 insertions, 1 deletions
diff --git a/basic/inc/pch/precompiled_sb.hxx b/basic/inc/pch/precompiled_sb.hxx
index ab5c6ce4f40e..203b7562b7f6 100644
--- a/basic/inc/pch/precompiled_sb.hxx
+++ b/basic/inc/pch/precompiled_sb.hxx
@@ -29,7 +29,7 @@
#include <stdlib.h>
#include <string.h>
#include <vector>
-#include <boost/optional.hpp>
+#include <o3tl/optional.hxx>
#include <boost/property_tree/ptree.hpp>
#endif // PCH_LEVEL >= 1
#if PCH_LEVEL >= 2