File: sfinae17.C

package info (click to toggle)
gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 680,956 kB
  • sloc: ansic: 3,237,715; cpp: 896,882; ada: 772,854; f90: 144,254; asm: 68,788; makefile: 67,456; sh: 29,743; exp: 28,045; objc: 15,273; fortran: 11,885; python: 7,369; pascal: 5,375; awk: 3,725; perl: 2,872; yacc: 316; xml: 311; ml: 285; lex: 198; haskell: 122
file content (31 lines) | stat: -rw-r--r-- 446 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
 
// PR c++/48530
// { dg-do compile { target c++11 } }

template<class T,
	 class = decltype(T{})
>
char f(int);

template<class>
char (&f(...))[2];

struct DelDtor {
  ~DelDtor() = delete;
};

static_assert(sizeof(f<DelDtor[2]>(0)) != 1, "Error");

struct A
{
  static DelDtor *p;
};

template<class T,
	 class = decltype(delete T::p, (T*)0)
>
char g(int);

template<class>
char (&g(...))[2];

static_assert(sizeof(g<DelDtor>(0)) != 1, "Error");