File: nsdmi3.C

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gcc-arm-none-eabi 15%3A12.2.rel1-1
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// { dg-do compile { target c++11 } }

struct A
{
  int i;
  explicit constexpr A(int i): i(i) {}
};

struct B
{
  A a1 = 1;			// { dg-error "" }
  A a2 { 2 };
  A a3 = { 3 };			// { dg-error "explicit" }
};

constexpr B b;

// { dg-prune-output "B::B. is not usable" }
// { dg-prune-output "B::a1" }