File: partial6.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 (31 lines) | stat: -rw-r--r-- 594 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++/41703
// The second GetAllSize template is more specialized because even though
// deduction on each parameter type succeeds, we never get a template
// argument for its X to make it match the first template.

template <typename T, int (T::*)() const>
struct TSizeEnabler
{
    typedef T TClass;
};

template <typename X>
int
GetAllSize(const X &Var)
{ return sizeof(Var); }

template <typename X>
int
GetAllSize(const typename TSizeEnabler<X, &X::func>::TClass &Var)
{ return Var.func(); }

struct H
{
    int func() const;
};

int main()
{
    H b;
    return GetAllSize< H >(b);
}