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// PR c++/113545
// { dg-do compile { target c++14 } }
char foo;
// This one caught a call to gcc_unreachable in
// cp/constexpr.cc:label_matches, when passed a convert_expr from the
// cast in the call.
constexpr unsigned char swbar(__UINTPTR_TYPE__ baz)
{
switch (baz)
{
case 13:
return 11;
case 14:
return 78;
case 2048:
return 13;
default:
return 42;
}
}
// For reference, the equivalent* if-statements.
constexpr unsigned char ifbar(__UINTPTR_TYPE__ baz)
{
if (baz == 13)
return 11;
else if (baz == 14)
return 78;
else if (baz == 2048)
return 13;
else
return 42;
}
__attribute__ ((__noipa__))
void xyzzy(int x)
{
if (x != 42)
__builtin_abort ();
}
int main()
{
unsigned constexpr char c = swbar(reinterpret_cast<__UINTPTR_TYPE__>(&foo)); // { dg-error "conversion from pointer type" }
xyzzy(c);
unsigned constexpr char d = ifbar(reinterpret_cast<__UINTPTR_TYPE__>(&foo)); // { dg-error "conversion from pointer type" }
xyzzy(d);
unsigned constexpr char e = swbar((__UINTPTR_TYPE__) &foo); // { dg-error "conversion from pointer type" }
xyzzy(e);
unsigned constexpr char f = ifbar((__UINTPTR_TYPE__) &foo); // { dg-error "conversion from pointer type" }
xyzzy(f);
}
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