llvm-project/clang/test/SemaCXX/overloaded-builtin-operator...

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// RUN: clang-cc -fsyntax-only -verify %s
struct yes;
struct no;
struct Short {
operator short();
};
struct Long {
operator long();
};
enum E1 { };
struct Enum1 {
operator E1();
};
enum E2 { };
struct Enum2 {
operator E2();
};
struct X {
void f();
};
typedef void (X::*pmf)();
struct Xpmf {
operator pmf();
};
yes& islong(long);
yes& islong(unsigned long); // FIXME: shouldn't be needed
no& islong(int);
void f(Short s, Long l, Enum1 e1, Enum2 e2, Xpmf pmf) {
// C++ [over.built]p8
int i1 = +e1;
int i2 = -e2;
// C++ [over.built]p10:
int i3 = ~s;
bool b1 = !s;
// C++ [over.built]p12
(void)static_cast<yes&>(islong(s + l));
(void)static_cast<no&>(islong(s + s));
// C++ [over.built]p16
(void)(pmf == &X::f);
(void)(pmf == 0);
// C++ [over.built]p17
(void)static_cast<yes&>(islong(s % l));
(void)static_cast<yes&>(islong(l << s));
(void)static_cast<no&>(islong(s << l));
(void)static_cast<yes&>(islong(e1 % l));
// FIXME: should pass (void)static_cast<no&>(islong(e1 % e2));
}
struct ShortRef {
operator short&();
};
struct LongRef {
operator volatile long&();
};
struct XpmfRef {
operator pmf&();
};
struct E2Ref {
operator E2&();
};
void g(ShortRef sr, LongRef lr, E2Ref e2_ref, XpmfRef pmf_ref) {
// C++ [over.built]p3
short s1 = sr++;
// C++ [over.built]p3
long l1 = lr--;
// C++ [over.built]p18
short& sr1 = (sr *= lr);
volatile long& lr1 = (lr *= sr);
// C++ [over.built]p20:
E2 e2r2;
e2r2 = e2_ref;
pmf &pmr = (pmf_ref = &X::f); // expected-error{{no viable overloaded '='}}
pmf pmr2;
pmr2 = pmf_ref;
// C++ [over.built]p22
short& sr2 = (sr %= lr);
volatile long& lr2 = (lr <<= sr);
bool b1 = (sr && lr) || (sr || lr);
}
struct VolatileIntPtr {
operator int volatile *();
};
struct ConstIntPtr {
operator int const *();
};
struct VolatileIntPtrRef {
operator int volatile *&();
};
struct ConstIntPtrRef {
operator int const *&();
};
void test_with_ptrs(VolatileIntPtr vip, ConstIntPtr cip, ShortRef sr,
VolatileIntPtrRef vipr, ConstIntPtrRef cipr) {
const int& cir1 = cip[sr];
const int& cir2 = sr[cip];
volatile int& vir1 = vip[sr];
volatile int& vir2 = sr[vip];
bool b1 = (vip == cip);
long p1 = vip - cip;
// C++ [over.built]p5:
int volatile *vip1 = vipr++;
int const *cip1 = cipr++;
int volatile *&vipr1 = ++vipr;
int const *&cipr1 = --cipr;
// C++ [over.built]p6:
int volatile &ivr = *vip;
// C++ [over.built]p8:
int volatile *vip2 = +vip;
int i1 = +sr;
int i2 = -sr;
// C++ [over.built]p13:
int volatile &ivr2 = vip[17];
int const &icr2 = 17[cip];
}
// C++ [over.match.open]p4
void test_assign_restrictions(ShortRef& sr) {
sr = (short)0; // expected-error{{no viable overloaded '='}}
}