File: cxx2a-spaceship.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 (24 lines) | stat: -rw-r--r-- 963 bytes parent folder | download | duplicates (20) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
// RUN: %clang_cc1 -std=c++2a -verify %s

template<int> struct X {};

X<1> operator<<(X<0>, X<0>);
X<2> operator<=>(X<0>, X<1>);
X<2> operator<=>(X<1>, X<0>);
X<3> operator<(X<0>, X<2>);
X<3> operator<(X<2>, X<0>);

void f(X<0> x0, X<1> x1) {
  X<2> a = x0 <=> x0 << x0;
  X<2> b = x0 << x0 <=> x0; // expected-warning {{overloaded operator << has higher precedence than comparison operator}} expected-note 2{{}}
  X<3> c = x0 < x0 <=> x1;
  X<3> d = x1 <=> x0 < x0;
  X<3> e = x0 < x0 <=> x0 << x0;
  X<3> f = x0 << x0 <=> x0 < x0; // expected-warning {{overloaded operator << has higher precedence than comparison operator}} expected-note 2{{}}
}

struct PR41991 {
  [[nodiscard]] friend bool operator==(const PR41991&, const PR41991&) = default;
  [[nodiscard]] friend bool operator!=(const PR41991&, const PR41991&) = delete;
  [[nodiscard]] friend bool operator<(const PR41991&, const PR41991&); // expected-error {{an attribute list cannot appear here}}
};