Yes, using a trick I learnt from @Xeo in the Lounge. I originally used it to make a variadic "print" template function.
#include
template
int add()
{
int result = 0;
using expand_variadic_pack = int[]; // dirty trick, see below
(void)expand_variadic_pack{0, ((result += ints), void(), 0)... };
// first void: silence variable unused warning
// uses braced-init-list initialization rules, which evaluates
// the elements inside a braced-init-list IN ORDER, to repetetively
// execute a certain operation
// second void is to prevent malicious "operator," overloads, which
// cannot exist for void types
// 0 at the end is to handle empty variadic pack (zero-size array initializer is illegal.
return result;
}
int main()
{
std::cout << add<1,2,3,4>() << '\n';
}
This works on every compiler that has decent C++11 support (GCC 4.8+, Clang 3.2+, MSVS2013, ...)
