File: partial_specialization.cppm

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (34 lines) | stat: -rw-r--r-- 704 bytes parent folder | download | duplicates (6) 
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
 
// RUN: rm -rf %t
// RUN: split-file %s %t
// RUN: cd %t
//
// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/A.cppm -o %t/A.pcm
// RUN: %clang_cc1 -std=c++20 -fprebuilt-module-path=%t %t/Use.cpp -fsyntax-only -verify
//
//--- foo.h
template<typename T, typename U>
inline constexpr bool IsSame = false;

template<typename T>
inline constexpr bool IsSame<T, T> = true;

template <typename T>
class A {
public:
    A();
    ~A() noexcept(IsSame<T, T>);
};

//--- A.cppm
module;
#include "foo.h"
export module A;
export using ::A;

//--- Use.cpp
import A;
void bool_consume(bool b);
void use() {
    A<int> a{};
    bool_consume(IsSame); // expected-error {{use of undeclared identifier 'IsSame'}}
}