https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62057
Bug ID: 62057
Summary: __builtin_offsetof works but std::offsetof doesn't
Product: gcc
Version: 4.6.4
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: igodard at pacbell dot net
This code:
#include <cstddef>
class A {
public:
int i;
};
int main() {
int x = __builtin_offsetof(A, i);
int j = std::offsetof(A, i);
}
gets you this:
s6:~/ootbc/genAsm$ gcc foo.cc
foo.cc: In function âint main()â:
foo.cc:10:16: error: expected unqualified-id before â__builtin_offsetofâ
foo.cc:10:16: error: expected â,â or â;â before â__builtin_offsetofâ
Version:
s6:~/ootbc/genAsm$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/local/gcc/4.6.4/libexec/gcc/x86_64-unknown-linux-gnu/4.6.4/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.6.4/configure --prefix=/usr/local/gcc/4.6.4
--libdir=/usr/local/gcc/4.6.4/lib64 --enable-languages=c,c++
Thread model: posix
gcc version 4.6.4 (GCC)
