File: friend-definition-2.cpp

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (35 lines) | stat: -rw-r--r-- 1,232 bytes parent folder | download | duplicates (19)
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
// RUN: %clang_cc1 -std=c++14 -fmodules %s -verify
// RUN: %clang_cc1 -std=c++14 -fmodules %s -verify -triple i686-windows
// expected-no-diagnostics
#pragma clang module build A
module A {}
#pragma clang module contents
#pragma clang module begin A
template<typename T> struct ct { friend auto operator-(ct, ct) { struct X {}; return X(); } void x(); };
#pragma clang module end
#pragma clang module endbuild

#pragma clang module build B
module B {}
#pragma clang module contents
#pragma clang module begin B
template<typename T> struct ct { friend auto operator-(ct, ct) { struct X{}; return X(); } void x(); };
inline auto f() { return ct<float>() - ct<float>(); }
#pragma clang module end
#pragma clang module endbuild

// Force the definition of ct in module A to be the primary definition.
#pragma clang module import A
template<typename T> void ct<T>::x() {}

// Attempt to cause the definition of operator- in the ct primary template in
// module B to be the primary definition of that function. If that happens,
// we'll be left with a class template ct that appears to not contain a
// definition of the inline friend function.
#pragma clang module import B
auto v = f();

ct<int> make();
void h() {
  make() - make();
}