https://bugs.llvm.org/show_bug.cgi?id=32913
Bug ID: 32913
Summary: Redundant warning when comparing values of different
scoped enum types
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: rjmcc...@apple.com
CC: llvm-bugs@lists.llvm.org
harza:/tmp$ cat red.cpp
enum class UnscopedA { // Also happens if either (but not both) are unscoped
SomeCase
};
enum class ScopedA {
SomeOtherCase
};
bool compare(ScopedA a) {
return (a == UnscopedA::SomeCase);
}
harza:/tmp$ clang++ -std=c++11 -fsyntax-only red.cpp
red.cpp:10:13: warning: comparison of two values with different enumeration
types ('ScopedA' and 'UnscopedA') [-Wenum-compare]
return (a == UnscopedA::SomeCase);
~ ^ ~~~~~~~~~~~~~~~~~~~
red.cpp:10:13: error: invalid operands to binary expression ('ScopedA' and
'UnscopedA')
return (a == UnscopedA::SomeCase);
~ ^ ~~~~~~~~~~~~~~~~~~~
1 warning and 1 error generated.
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