Drop o3tl::optional wrapper

...now that macOS builds are guaranteed to have std::optional since
358146bbbd1b9775c12770fb5e497b6ec5adfc51 "Bump macOS build baseline to
Xcode 11.3 and macOS 10.14.4".

The change is done mostly mechanically with

> for i in $(git grep -Fl optional); do
>  sed -i -e 's:<o3tl/optional\.hxx>\|\"o3tl/optional\.hxx\":<optional>:' \
>   -e 's/\<o3tl::optional\>/std::optional/g' \
>   -e 's/\<o3tl::make_optional\>/std::make_optional/g' "$i"
> done
> for i in $(git grep -Flw o3tl::nullopt); do
>  sed -i -e 's/\<o3tl::nullopt\>/std::nullopt/g' "$i"
> done

(though that causes some of the resulting

#include <optional>

to appear at different places relative to other includes than if they had been
added manually), plus a few manual modifications:

* adapt bin/find-unneeded-includes
* adapt desktop/IwyuFilter_desktop.yaml
* remove include/o3tl/optional.hxx
* quote resulting "<"/">" as "&lt;"/"&gt;" in officecfg/registry/cppheader.xsl
* and then solenv/clang-format/reformat-formatted-files

Change-Id: I68833d9f7945e57aa2bc703349cbc5a56b342273
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/89165
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/include/dbaccess/genericcontroller.hxx b/include/dbaccess/genericcontroller.hxx
index 60c75236475f..805131548f28 100644
--- a/include/dbaccess/genericcontroller.hxx
+++ b/include/dbaccess/genericcontroller.hxx
@@ -27,7 +27,7 @@
 #include <memory>
 #include <vector>
 
-#include <o3tl/optional.hxx>
+#include <optional>
 
 #include <com/sun/star/awt/XUserInputInterception.hpp>
 #include <com/sun/star/frame/CommandGroup.hpp>
@@ -94,7 +94,7 @@ namespace dbaui
     class ODataView;
 
     template< typename T >
-    inline bool SAL_CALL operator >>= (const css::uno::Any& _any, o3tl::optional< T >& _value)
+    inline bool SAL_CALL operator >>= (const css::uno::Any& _any, std::optional< T >& _value)
     {
         _value.reset();  // de-init the optional value
 
@@ -118,10 +118,10 @@ namespace dbaui
     {
         bool                        bEnabled;
 
-        o3tl::optional<bool> bChecked;
-        o3tl::optional<bool> bInvisible;
+        std::optional<bool> bChecked;
+        std::optional<bool> bInvisible;
         css::uno::Any               aValue;
-        o3tl::optional<OUString> sTitle;
+        std::optional<OUString> sTitle;
 
         FeatureState() : bEnabled(false) { }
     };