[LLVMbugs] [Bug 17110] New: incorrect warning "missing exception specification 'throw()'"

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Sep 5 12:07:48 PDT 2013


            Bug ID: 17110
           Summary: incorrect warning "missing exception specification
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: clang at martinien.de
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified


for this program:

void __attribute__ ((__noreturn__)) f();

void __attribute__ ((__noreturn__)) exit(int status) throw();

void exit(int status) throw()

I get the following warning:

clang++ -c warn.cpp
warn.cpp:5:6: warning: 'exit' is missing exception specification 'throw()'
void exit(int status) throw()
warn.cpp:3:37: note: previous declaration is here
void __attribute__ ((__noreturn__)) exit(int status) throw();
1 warning generated.

Adding __attribute__ ((__noreturn__)) to the definition of exit() gets rid of
the warning. But is this required at all? Either way, it should not warn about
the throw().

Bug 8829 looks very similar.

Best regards,

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