File: cxx17-compat.cpp

package info (click to toggle)
llvm-toolchain-6.0 1%3A6.0.1-10
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 598,080 kB
  • sloc: cpp: 3,046,253; ansic: 595,057; asm: 271,965; python: 128,926; objc: 106,554; sh: 21,906; lisp: 10,191; pascal: 6,094; ml: 5,544; perl: 5,265; makefile: 2,227; cs: 2,027; xml: 686; php: 212; csh: 117
file content (29 lines) | stat: -rw-r--r-- 1,113 bytes parent folder | download | duplicates (5)
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
// RUN: %clang_cc1 -fsyntax-only -std=c++17 -pedantic -verify %s
// RUN: %clang_cc1 -fsyntax-only -std=c++2a -Wc++17-compat-pedantic -verify %s

struct A {};
int (A::*pa)() const&;
int use_pa = (A().*pa)();
#if __cplusplus <= 201703L
  // expected-warning@-2 {{invoking a pointer to a 'const &' member function on an rvalue is a C++2a extension}}
#else
  // expected-warning@-4 {{invoking a pointer to a 'const &' member function on an rvalue is incompatible with C++ standards before C++2a}}
#endif

struct B {
  void b() {
    (void) [=, this] {};
#if __cplusplus <= 201703L
    // expected-warning@-2 {{explicit capture of 'this' with a capture default of '=' is a C++2a extension}}
#else
    // expected-warning@-4 {{explicit capture of 'this' with a capture default of '=' is incompatible with C++ standards before C++2a}}
#endif
  }

  int n : 5 = 0;
#if __cplusplus <= 201703L
    // expected-warning@-2 {{default member initializer for bit-field is a C++2a extension}}
#else
    // expected-warning@-4 {{default member initializer for bit-field is incompatible with C++ standards before C++2a}}
#endif
};