File: alias-decl-44.C

package info (click to toggle)
gcc-arm-none-eabi 15%3A12.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 959,712 kB
  • sloc: cpp: 3,275,382; ansic: 2,061,766; ada: 840,956; f90: 208,513; makefile: 76,132; asm: 73,433; xml: 50,448; exp: 34,146; sh: 32,436; objc: 15,637; fortran: 14,012; python: 11,991; pascal: 6,787; awk: 4,779; perl: 3,054; yacc: 338; ml: 285; lex: 201; haskell: 122
file content (43 lines) | stat: -rw-r--r-- 873 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
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
 
// PR c++/63849
// { dg-do compile { target c++11 } }

template <class _T, class...>
using First = _T;            // we should not use this
                             // alias with only
                             // one pack parameter (?)

template <template <class...> class _Successor,
          int,
          class... _Xs>
struct Overlay
{
    using O = _Successor<_Xs...>;
};

template <class... _Pack>
struct List
{
    template <int _s>
    using O = typename Overlay<List, _s, _Pack...>::O;

    template <template <class...> class _S>
    using Pass = _S<_Pack...>;

    template <int _i>
    using At = typename O<_i>
    ::template Pass<First>;
};

template <int _i>
using At = typename List<int, char>
::template At<_i>;

template <int _i>
void func_crash(At<_i>&) {}

int main(int argc, char *argv[])
{
    char ccc;
    int iii;
    func_crash<0>(iii);
}