variadic70.c

来自「用于进行gcc测试」· C语言 代码 · 共 23 行

// { dg-do "run" }
// { dg-options "-std=gnu++0x" }
template <typename T, T... Args> struct bomb;

template <typename T>
struct bomb<T> {
 static const T value = 0;
};

template <typename T, T v, T... Args>
struct bomb<T, v, Args...> {
 static const T value = v + bomb<T, Args...>::value;
};

extern "C" void abort();

int main() {
  bomb<int, 1, 2, 3, 4> b;
  if (b.value != 10)
    abort();
  return 0;
}