[LLVMbugs] [Bug 5767] New: Cannot parse valid C-gnu89 code (array decay problem?)

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Fri Dec 11 23:38:17 PST 2009


http://llvm.org/bugs/show_bug.cgi?id=5767

           Summary: Cannot parse valid C-gnu89 code (array decay problem?)
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Semantic Analyzer
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: bagnara at cs.unipr.it
                CC: llvmbugs at cs.uiuc.edu


$ cat bug.c
struct hek {
  char hek_key[1];
};

extern void foo(char* p);

extern struct hek* zoo();

void bar() {
  foo(({
        ({
          struct hek *p;
          p = zoo();
          p;
        })->hek_key;
      }));
}
$ gcc -std=gnu89 -c bug.c
$ icc -std=gnu89 -c bug.c
$ clang -c -std=gnu89 bug.c
bug.c:10:7: error: incompatible type passing 'char [1]', expected 'char *'
  foo(({
      ^~
1 diagnostic generated.
$


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