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// PR c++/91360 - Implement C++20 P1143R2: constinit
// { dg-do compile { target c++2a } }
constinit constinit int v1; // { dg-error "duplicate .constinit." }
constexpr constinit int v2 = 1; // { dg-error "can use at most one of the .constinit. and .constexpr. specifiers" }
constinit constexpr int v3 = 1; // { dg-error "an use at most one of the .constinit. and .constexpr. specifiers" }
extern static constinit int v4; // { dg-error "conflicting specifiers" }
extern thread_local constinit int v5;
extern constinit int v6;
constinit typedef int T; // { dg-error ".constinit. cannot appear in a typedef declaration" }
struct S2 {
constinit int m1; // { dg-error "non-static data member .m1. declared .constinit." }
constinit unsigned int b : 32; // { dg-error " non-static data member .b. declared .constinit." }
};
struct S3 {
constinit S3() {} // { dg-error ".constinit. on function return type is not allowed" }
constinit ~S3() {} // { dg-error ".constinit. on function return type is not allowed" }
};
constinit struct S4 { // { dg-error ".constinit. cannot be used for type declarations" }
};
template<constinit int I> // { dg-error "a parameter cannot be declared .constinit." }
struct X { };
int
fn1 ()
{
// Not static storage
constinit int a1 = 42; // { dg-error "17:.constinit. can only be applied to a variable with static or thread storage" }
constinit int a2 = 42; // { dg-error "17:.constinit. can only be applied to a variable with static or thread storage" }
extern constinit int e1;
return 0;
}
constinit int // { dg-error ".constinit. on function return type is not allowed" }
fn3 ()
{
}
void
fn2 (int i, constinit int p) // { dg-error "a parameter cannot be declared .constinit." }
{
constinit auto l = [i](){ return i; }; // { dg-error "18:.constinit. can only be applied to a variable with static or thread storage" }
}
struct B { int d; };
void
fn3 (B b)
{
constinit auto [ a ] = b; // { dg-error ".constinit. can only be applied to a variable with static or thread storage" }
}
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