https://llvm.org/bugs/show_bug.cgi?id=26249
Bug ID: 26249
Summary: Poor diagnostic when anonymous enum with underlying
type is declared in a struct and the underlying type
isn't known
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++11
Assignee: unassignedclangb...@nondot.org
Reporter: nicolaswe...@gmx.de
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
This has a nice diagnostic:
Nicos-MBP:llvm-build thakis$ cat enum.cc
enum : uint32_t { kNone = 0 };
Nicos-MBP:llvm-build thakis$ clang -c enum.cc -std=c++11
enum.cc:1:8: error: unknown type name 'uint32_t'
enum : uint32_t { kNone = 0 };
^
This makes it fairly clear that an stdint.h include is missing. But this
doesn't:
Nicos-MBP:llvm-build thakis$ cat enum.cc
struct bla {
enum : uint32_t { kNone = 0 };
};
Nicos-MBP:llvm-build thakis$ clang -c enum.cc -std=c++11
enum.cc:2:8: error: unnamed enumeration must be a definition
enum : uint32_t { kNone = 0 };
^
enum.cc:2:3: warning: declaration does not declare anything
[-Wmissing-declarations]
enum : uint32_t { kNone = 0 };
^
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