https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87760
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This is already fixed in gcc-7.
Reduced testcase:
extern "C" void* memset(void*, int, long unsigned int);
namespace std{
using ::memset;
using size_t = decltype(sizeof(0));
void* memset(void*, std::size_t count, int ch) = delete;
}
struct foo{ // POD
int a;
int* b;
char c;
};
int main() {
foo b[10];
std::memset(&b, 0, sizeof b);
std::memset(&b, 0u, sizeof b);
}
GCC 6 says:
memset.cc:6:9: error: deleted definition of 'void* std::memset(void*,
std::size_t, int)'
void* memset(void*, std::size_t count, int ch) = delete;
^~~~~~
<built-in>: note: previous declaration of 'void* std::memset(void*, int, long
unsigned int)'
But GCC 7 and later accept it.
