[QPID-7709] [qpid-cpp] Problem building on Fedora rawhide (-Werror=maybe-uninitialized in SelectorExpression.cpp)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: qpid-python-1.35.0
• Fix Version/s: qpid-cpp-1.40.0
• Component/s: C++ Broker
• Labels: patch

Environment

Fedora rawhide

• Assignee: Andrew Stitcher
• Reporter: Irina Boverman
• Created: 14/Mar/17 13:33
• Updated: 16/Apr/23 12:01
• Resolved: 02/Mar/21 03:44

Description

Fails to build in Fedora rawhide:
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/Selector.cpp: In member function 'const qpid::broker::Value qpid::broker::MessageSelectorEnv::specialValue(const string&) const':
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/Selector.cpp:169:11: error: 'v' may be used uninitialized in this function [-Werror=maybe-uninitialized]
v = Value();
~_^~~~~~~~
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/SelectorExpression.cpp: In member function 'qpid::broker::Expression* qpid::broker::Parse::orExpression(qpid::broker::Tokeniser&)':
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/SelectorExpression.cpp:1041:13: error: '((void)& s +17)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (s[1]=='b' || s[1]=='B') {
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/SelectorExpression.cpp:1041:13: error: '((void)& s +17)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (s[1]=='b' || s[1]=='B') {
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/SelectorExpression.cpp:1041:13: error: '((void)& s +17)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (s[1]=='b' || s[1]=='B') {
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/SelectorExpression.cpp:1041:13: error: '((void)& s +17)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (s[1]=='b' || s[1]=='B') {
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/SelectorExpression.cpp:1041:13: error: '((void)& s +17)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (s[1]=='b' || s[1]=='B') {
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/SelectorExpression.cpp:1041:13: error: '((void)& s +17)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (s[1]=='b' || s[1]=='B') {
cc1plus: all warnings being treated as errors
make[2]: *** [src/CMakeFiles/qpidbroker.dir/build.make:3234: src/CMakeFiles/qpidbroker.dir/qpid/broker/Selector.cpp.o] Error 1
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/SelectorExpression.cpp: In member function 'qpid::broker::Expression* qpid::broker::Parse::unaryArithExpression(qpid::broker::Tokeniser&)':
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/SelectorExpression.cpp:1041:13: error: '((void)& s +17)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (s[1]=='b' || s[1]=='B') {
/builddir/build/BUILD/qpid-cpp-1.35.0/src/qpid/broker/SelectorExpression.cpp:1041:13: error: '((void)& s +17)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (s[1]=='b' || s[1]=='B') {
cc1plus: all warnings being treated as errors
make[2]: *** [src/CMakeFiles/qpidbroker.dir/build.make:3258: src/CMakeFiles/qpidbroker.dir/qpid/broker/SelectorExpression.cpp.o] Error 1

Issue Links

• duplicates: QPID-7893 compilation failure on Fedora 26
• is caused by: QPID-6718 parsing errors for integer literals in selectors