File: lambda-template.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 (40 lines) | stat: -rw-r--r-- 906 bytes parent folder | download | duplicates (4) 
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
 
// { dg-do run { target c++11 } }

extern "C" void abort();

template <class T>
auto apply (T t) -> decltype (t())
{
  return t();
}

template <class T>
void f(T t)
{
  T t2 = t;
  if (t != [=]()->T { return t; }())
    abort ();
  if (t != [=] { return t; }())
    abort ();
  if (t != [=] { return t2; }())
    abort ();
  if (t != [&] { return t; }())
    abort ();
  if (t != apply([=]{return t;}))
    abort ();

  int i;
  [&] (int a)                    { return a+i+t; } (0);
  [&] (int a) -> decltype(a)     { return a+i+t; } (0);
  [&] (int a) -> decltype(i)     { return a+i+t; } (0);
  [&] (int a) -> decltype(t)     { return a+i+t; } (0);
  [&] (int a) -> decltype(a+i)   { return a+i+t; } (0);
  [&] (int a) -> decltype(a+t)   { return a+i+t; } (0);
  [&] (int a) -> decltype(i+t)   { return a+i+t; } (0);
  [&] (int a) -> decltype(a+i+t) { return a+i+t; } (0);
}

int main()
{
  f(0xbeef);
}