https://llvm.org/bugs/show_bug.cgi?id=25315
Bug ID: 25315
Summary: typeof rejects initialiser expression
Product: clang
Version: 3.7
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: mich...@araneidae.co.uk
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
The following code:
extern void *blah(void *arg);
const void *test2(const void *arg)
{
return blah( ( {
union {
typeof((*(const void * []) { (arg) })) _value;
void * _cast;
} _union;
_union._value = ((*(const void * []) { (arg) }));
_union._cast;
} ) );
}
generates the error:
test.c:7:43: error: initializer element is not a compile-time constant
typeof((*(const void * []) { (arg) })) _value;
^~~
1 error generated.
This code compiles just fine with gcc, and if the typeof(...) expression is
replaced (with const void *) clang compiles this ok as well.
By the way, bug #11299 looks related, but I can't say if it really is.
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