File: ms-if-exists.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (33 lines) | stat: -rw-r--r-- 868 bytes parent folder | download | duplicates (14) 
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
 
// RUN: %clang_cc1 -x c++ -fms-extensions -fsyntax-only -emit-pch -o %t %s
// RUN: %clang_cc1 -x c++ -fms-extensions -fsyntax-only -include-pch %t %s -verify

// RUN: %clang_cc1 -x c++ -fms-extensions -fsyntax-only -emit-pch -fpch-instantiate-templates -o %t %s
// RUN: %clang_cc1 -x c++ -fms-extensions -fsyntax-only -include-pch %t %s -verify

#ifndef HEADER
#define HEADER
template<typename T>
void f(T t) {
  __if_exists(T::foo) {
    { }
    t.foo();
  }

  __if_not_exists(T::bar) {
    int *i = t;
    { }
  }
}
#else
struct HasFoo { 
  void foo();
};
struct HasBar { 
  void bar(int);
  void bar(float);
};

template void f(HasFoo); // expected-note{{in instantiation of function template specialization 'f<HasFoo>' requested here}}
                         // expected-error@17{{no viable conversion from 'HasFoo' to 'int *'}}
template void f(HasBar);
#endif