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// P0892R2
// { dg-do compile }
// { dg-options "-std=c++2a" }
template<int T = 1>
struct S {
explicit(T) operator int();
};
template<typename T, int N>
struct R {
explicit(N) operator T();
};
template<typename T>
struct U {
explicit((T) 1.0) operator T();
};
int
main ()
{
S s;
int i1 = s; // { dg-error "cannot convert" }
S<true> s2;
int i2 = s2; // { dg-error "cannot convert" }
S<false> s3;
int i3 = s3;
int i4{s};
int i5{s2};
int i6{s3};
R<int, true> r;
int i7 = r; // { dg-error "cannot convert" }
R<int, false> r2;
int i8 = r2;
U<int> u;
int i9 = u; // { dg-error "cannot convert" }
int i10{u};
}
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