25 lines
655 B
C
25 lines
655 B
C
// { dg-options "-std=gnu++0x" }
|
|
template<template<int, int> class Meta, int Initial, int... Values>
|
|
struct accumulate {
|
|
static const int value = Initial;
|
|
};
|
|
|
|
template<template<int, int> class Meta, int Initial, int Value, int... Rest>
|
|
struct accumulate<Meta, Initial, Value, Rest...> {
|
|
static const int value =
|
|
Meta<Value, accumulate<Meta, Initial, Rest...>::value>::value;
|
|
};
|
|
|
|
template<int X, int Y>
|
|
struct sum {
|
|
static const int value = X + Y;
|
|
};
|
|
|
|
template<int X, int Y>
|
|
struct prod {
|
|
static const int value = X * Y;
|
|
};
|
|
|
|
int a0[accumulate<sum,0,1,2,3,4,5>::value == 15? 1 : -1];
|
|
int a1[accumulate<prod,1,1,2,3,4,5>::value == 120? 1 : -1];
|