File: explicitly-specialized-template.cpp

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-18
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,908,340 kB
  • sloc: cpp: 6,667,937; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,987; javascript: 2,149; xml: 892; fortran: 649; cs: 573
file content (47 lines) | stat: -rw-r--r-- 836 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
35
36
37
38
39
40
41
42
43
44
45
46
47
 
// RUN: rm -rf %t
// RUN: mkdir -p %t
// RUN: split-file %s %t
//
// RUN: %clang_cc1 -std=c++20 %t/X.cppm -emit-module-interface -o %t/X.pcm
// RUN: %clang_cc1 -std=c++20 -fprebuilt-module-path=%t %t/Use.cpp -fsyntax-only -verify
//
//--- foo.h
#ifndef FOO_H
#define FOO_H
template <typename T>
struct base {};

template <typename T>
struct foo;

template <typename T>
struct foo {};

template <>
struct foo<int> : base<int> {
  int getInt();
};
#endif // FOO_H

//--- X.cppm
module;
#include "foo.h"
export module X;
export template <class T>
class X {
  foo<int> x;

public:
  int print() {
    return x.getInt();
  }
};

//--- Use.cpp
import X;
foo<int> f; // expected-error {{'foo' must be declared before it is used}}
            // expected-note@* {{declaration here is not visible}}
int bar() {
  X<int> x;
  return x.print();
}