[llvm-bugs] [Bug 38351] New: some incompatible declarations not diagnosed

via llvm-bugs llvm-bugs at lists.llvm.org
Sat Jul 28 23:09:10 PDT 2018


            Bug ID: 38351
           Summary: some incompatible  declarations not diagnosed
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: zhonghao at pku.org.cn
                CC: llvm-bugs at lists.llvm.org

The code is as follow:

int f(int (*)[]);
int g() { int f(int (*)[2]); }
int f(int (*)[3]);

clang accepts the code, but gcc rejects it:

gcc code0.c 
code0.c:3:5: error: conflicting types for 'f'
 int f(int (*)[3]);
code0.c:2:15: note: previous declaration of 'f' was here
 int g() { int f(int (*)[2]); }

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