File: cxx1z-nested-namespace-definition.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 (38 lines) | stat: -rw-r--r-- 956 bytes parent folder | download | duplicates (16) 
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
 
// RUN: cp %s %t
// RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++98
// RUN: not %clang_cc1 -x c++ -fixit %t -Werror -DFIXIT
// RUN: %clang_cc1 -x c++ %t -DFIXIT
// RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++17 -Wc++14-compat

namespace foo1::foo2::foo3 {
#if __cplusplus <= 201400L
// expected-warning@-2 {{nested namespace definition is a C++17 extension; define each namespace separately}}
#else
// expected-warning@-4 {{nested namespace definition is incompatible with C++ standards before C++17}}
#endif
  int foo(int x) { return x; }
}

#ifndef FIXIT
inline namespace goo::bar { // expected-error {{nested namespace definition cannot be 'inline'}} expected-warning 0-1{{C++11 feature}}
  int n;
}

int m = goo::bar::n;
#endif

int foo(int x) {
  return foo1::foo2::foo3::foo(x);
}

namespace bar1 {
  namespace bar2 {
    namespace bar3 {
      int bar(int x) { return x; }
    }
  }
}

int bar(int x) {
  return bar1::bar2::bar3::bar(x);
}