http://llvm.org/bugs/show_bug.cgi?id=12661
Bug #: 12661
Summary: clang fails to detect invalid application of "sizeof"
to an incomplete type when there is a complete type in
different scope
Product: clang
Version: trunk
Platform: PC
OS/Version: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 8452
--> http://llvm.org/bugs/attachment.cgi?id=8452
test case
Clang accepts the following erroneous code:
void bar(int);
int foo()
{
extern int arr[];
{ extern int arr[10]; }
bar(sizeof(arr)); /* should raise error here */
return 0;
}
GCC will report the error:
size_of_incomp.c: In function 'foo':
size_of_incomp.c:6: error: invalid application of 'sizeof' to incomplete type
'int[]'
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