view gcc/testsuite/g++.dg/ext/visibility/warn3.C @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
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// Tests for various visibility mismatch situations.

// { dg-require-visibility "" }

// { dg-final { scan-not-hidden "_ZN1A1fEv" } }

struct __attribute ((visibility ("hidden"))) A
{
  // This is OK, A::f gets default visibility.
  __attribute ((visibility ("default"))) void f ();
};

void A::f() { }

// This gets a warning because B objects might rely
// on hidden symbols from A.
struct B			// { dg-warning "visibility" }
{
  A a;
};

// This one has explicit visibility, so it doesn't get a warning.
struct __attribute ((visibility ("default"))) C
{
  A a;
};