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authorStephan Bergmann <sbergman@redhat.com>2021-05-05 08:20:18 +0200
committerCaolán McNamara <caolanm@redhat.com>2021-06-01 09:48:33 +0200
commit428206c3c1c54d01435cf4e4a07174cfbd567335 (patch)
treed05ebed6032445142cca64d847664f414785d816
parent5107bc515fba130bf4a488324f97971789a92f37 (diff)
Adapt to "libstdc++: Implement LWG 1203 for rvalue iostreams"
<https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=aa475c4ac80733f85ba47b109fc1900f05e810e2> towards GCC 12, so that now "the return type is the original rvalue stream type not its base class." (And which would thus have caused issues like > sfx2/source/control/bindings.cxx:1323:19: error: dynamic_cast from rvalue to reference type '::std::ostringstream &' (aka 'basic_ostringstream<char> &') > ? SAL_STREAM("File: " << pFile << " Line: " << nLine) : "")); > ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/sal/log.hxx:198:6: note: expanded from macro 'SAL_STREAM' > (dynamic_cast< ::std::ostringstream & >(::std::ostringstream() << stream).str()) > ^ > include/sal/log.hxx:341:20: note: expanded from macro 'SAL_INFO' > SAL_WHERE, stream) > ~~~~~~~~~~~^~~~~~~ > include/sal/log.hxx:155:68: note: expanded from macro 'SAL_DETAIL_LOG_STREAM' > SAL_DETAIL_LOG_STREAM_PRIVATE_(level, area, where, stream); \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~ > include/sal/log.hxx:133:45: note: expanded from macro 'SAL_DETAIL_LOG_STREAM_PRIVATE_' > ::sal::detail::StreamStart() << stream) == 1) \ > ^~~~~~ now. While the issue with old libstdc++ that originally prompted the dynamic_cast was > sfx2/source/control/bindings.cxx:1323:19: error: no member named 'str' in 'std::basic_ostream<char>' > ? SAL_STREAM("File: " << pFile << " Line: " << nLine) : "")); > ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/sal/log.hxx:194:40: note: expanded from macro 'SAL_STREAM' > (::std::ostringstream() << stream).str() > ^ > include/sal/log.hxx:336:20: note: expanded from macro 'SAL_INFO' > SAL_WHERE, stream) > ~~~~~~~~~~~^~~~~~~ > include/sal/log.hxx:155:68: note: expanded from macro 'SAL_DETAIL_LOG_STREAM' > SAL_DETAIL_LOG_STREAM_PRIVATE_(level, area, where, stream); \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~ > include/sal/log.hxx:133:45: note: expanded from macro 'SAL_DETAIL_LOG_STREAM_PRIVATE_' > ::sal::detail::StreamStart() << stream) == 1) \ > ^~~~~~ .) The libstdc++ macro _GLIBCXX_RELEASE is reportedly available since GCC 7.1. Change-Id: I1ee6eabb66355c1f28b9d305cbd85bac50d6b0e1 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/115121 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <sbergman@redhat.com> (cherry picked from commit 1f3dddd6f21d91c429190ae314dadeec409f35f4, plus follow-up 95e26d3dce4f5a3b2d010d5ca47b4e450905a100 "tdf#142326: Adapt to 'libstdc++: Implement LWG 1203 for rvalue iostreams'") Change-Id: I7c8fef25e15fcfa9b83924467dc86dc2957fbd7d Reviewed-on: https://gerrit.libreoffice.org/c/core/+/116447 Tested-by: Jenkins Reviewed-by: Caolán McNamara <caolanm@redhat.com>
-rw-r--r--include/sal/log.hxx5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/sal/log.hxx b/include/sal/log.hxx
index 6bb0d1b43d3d..a0fa902dbce6 100644
--- a/include/sal/log.hxx
+++ b/include/sal/log.hxx
@@ -186,7 +186,10 @@ inline char const * unwrapStream(SAL_UNUSED_PARAMETER StreamIgnore const &) {
@since LibreOffice 3.5
*/
-#if defined _LIBCPP_VERSION || (defined _MSC_VER && _MSC_VER >= 1915)
+#if defined _LIBCPP_VERSION \
+ || (defined _GLIBCXX_RELEASE \
+ && (_GLIBCXX_RELEASE >= 12 || (_GLIBCXX_RELEASE == 11 && __GLIBCXX__ > 20210428))) \
+ || (defined _MSC_VER && _MSC_VER >= 1915)
#define SAL_STREAM(stream) \
(::std::ostringstream() << stream).str()
#else