File: variadic26.C

package info (click to toggle)
gcc-arm-none-eabi 15%3A8-2019-q3-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 571,828 kB
  • sloc: ansic: 2,937,651; cpp: 881,644; ada: 597,189; makefile: 65,528; asm: 56,499; xml: 46,621; exp: 24,747; sh: 19,684; python: 7,256; pascal: 4,370; awk: 3,497; perl: 2,695; yacc: 316; ml: 285; f90: 234; lex: 198; objc: 194; haskell: 119
file content (24 lines) | stat: -rw-r--r-- 660 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
// { dg-do compile { target c++11 } }
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];