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| // RUN: %clang_cc1 -verify -std=c++2a -pedantic-errors %s
// RUN: cp %s %t
// RUN: not %clang_cc1 -x c++ -std=c++2a -fixit %t
// RUN: %clang_cc1 -Wall -pedantic-errors -x c++ -std=c++2a %t
// RUN: cat %t | FileCheck %s
/* This is a test of the various code modification hints that only
apply in C++2a. */
template<typename ...T> void init_capture_pack(T ...a) {
[x... = a]{}; // expected-error {{must appear before the name}}
[x = a...]{}; // expected-error {{must appear before the name}}
[...&x = a]{}; // expected-error {{must appear before the name}}
[...a]{}; // expected-error {{must appear after the name}}
[&...a]{}; // expected-error {{must appear after the name}}
[...&a]{}; // expected-error {{must appear after the name}}
}
namespace constinit_mismatch {
extern thread_local constinit int a; // expected-note {{declared constinit here}}
thread_local int a = 123; // expected-error {{'constinit' specifier missing on initializing declaration of 'a'}}
// CHECK: {{^}} constinit thread_local int a = 123;
int b = 123; // expected-note {{add the 'constinit' specifier}}
extern constinit int b; // expected-error {{'constinit' specifier added after initialization of variable}}
// CHECK: {{^}} extern int b;
template<typename> struct X {
template<int> static constinit int n; // expected-note {{constinit}}
};
template<typename T> template<int N>
int X<T>::n = 123; // expected-error {{missing}}
// CHECK: {{^}} constinit int X<T>::n = 123;
#define ABSL_CONST_INIT [[clang::require_constant_initialization]]
extern constinit int c; // expected-note {{constinit}}
int c; // expected-error {{missing}}
// CHECK: {{^}} ABSL_CONST_INIT int c;
#define MY_CONST_INIT constinit
extern constinit int d; // expected-note {{constinit}}
int d; // expected-error {{missing}}
// CHECK: {{^}} MY_CONST_INIT int d;
#undef MY_CONST_INIT
extern constinit int e; // expected-note {{constinit}}
int e; // expected-error {{missing}}
// CHECK: {{^}} ABSL_CONST_INIT int e;
#undef ABSL_CONST_INIT
}
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