https://bugs.llvm.org/show_bug.cgi?id=48672
Bug ID: 48672
Summary: Block scope function declaration with implicit int +
GNU attribute
Product: clang
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: C
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
In the following in C89 mode, h() is treated as a function declaration with an
implicit int return type in GCC, but is rejected by Clang as an invalid
declaration:
```
__attribute__(()) g(); // Accepted by both Clang and GCC
void func(void) {
__attribute__(()) h(); // Rejected by Clang, accepted by GCC
__attribute__(()) extern i(); // Accepted by both Clang and GCC
j(); // Function call expr to an implicitly-declared function j() in
// both Clang and GCC.
}
```
GCC and Clang both use the presence of a GNU-style attribute to signal that
what follows is a declaration, but it seems that Clang's handling requires some
kind of declaration specifier (like the `extern` keyword) to get this correct
at block scope.
--
You are receiving this mail because:
You are on the CC list for the bug._______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
