File: p6.cpp

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (32 lines) | stat: -rw-r--r-- 1,164 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
32
// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify
// RUN: %clang_cc1 -fsyntax-only -std=c++1z %s -verify

void test_conversion() {
  int (*fp1)(int) = [](int x) { return x + 1; };
  void (*fp2)(int) = [](int x) { };

  const auto lambda = [](int x) { };
  void (*fp3)(int) = lambda;

  volatile const auto lambda2 = [](int x) { }; // expected-note{{but method is not marked volatile}}
  void (*fp4)(int) = lambda2; // expected-error{{no viable conversion}}

  void (*fp5)(int) noexcept = [](int x) { };
#if __cplusplus > 201402L
  // expected-error@-2 {{no viable}} expected-note@-2 {{candidate}}
  void (*fp5a)(int) noexcept = [](auto x) { };
  // expected-error@-1 {{no viable}} expected-note@-1 {{candidate}}
  void (*fp5b)(int) noexcept = [](auto x) noexcept { };
#endif
  void (*fp6)(int) noexcept = [](int x) noexcept { };
}

void test_no_conversion() { 
  int (*fp1)(int) = [=](int x) { return x + 1; }; // expected-error{{no viable conversion}}
  void (*fp2)(int) = [&](int x) { }; // expected-error{{no viable conversion}}
}

void test_wonky() {
  const auto l = [](int x) mutable -> int { return + 1; };
  l(17); // okay: uses conversion function
}