forked from OSchip/llvm-project
125 lines
3.3 KiB
C++
125 lines
3.3 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
|
|
|
|
void f(int i, int j, int k = 3);
|
|
void f(int i, int j, int k);
|
|
void f(int i, int j = 2, int k);
|
|
void f(int i, int j, int k);
|
|
void f(int i = 1, int j, int k);
|
|
void f(int i, int j, int k);
|
|
|
|
void i()
|
|
{
|
|
f();
|
|
f(0);
|
|
f(0, 1);
|
|
f(0, 1, 2);
|
|
}
|
|
|
|
|
|
int f1(int i, // expected-note {{previous declaration is here}}
|
|
int i, int j) { // expected-error {{redefinition of parameter 'i'}}
|
|
i = 17;
|
|
return j;
|
|
}
|
|
|
|
int x;
|
|
void g(int x, int y = x); // expected-error {{default argument references parameter 'x'}}
|
|
|
|
void g2(int x, int y, int z = x + y); // expected-error {{default argument references parameter 'x'}} expected-error {{default argument references parameter 'y'}}
|
|
|
|
class X {
|
|
void f(X* x = this); // expected-error{{invalid use of 'this' outside of a nonstatic member function}}
|
|
|
|
void g() {
|
|
int f(X* x = this); // expected-error{{default argument references 'this'}}
|
|
}
|
|
};
|
|
|
|
// C++ [dcl.fct.default]p6
|
|
class C {
|
|
static int x;
|
|
void f(int i = 3); // expected-note{{previous definition is here}}
|
|
void g(int i, int j = x);
|
|
|
|
void h();
|
|
};
|
|
void C::f(int i = 3) // expected-error{{redefinition of default argument}}
|
|
{ }
|
|
|
|
void C::g(int i = 88, int j) {}
|
|
|
|
void C::h() {
|
|
g(); // okay
|
|
}
|
|
|
|
// C++ [dcl.fct.default]p9
|
|
struct Y {
|
|
int a;
|
|
int mem1(int i = a); // expected-error{{invalid use of nonstatic data member 'a'}}
|
|
int mem2(int i = b); // OK; use Y::b
|
|
int mem3(int i);
|
|
int mem4(int i);
|
|
|
|
struct Nested {
|
|
int mem5(int i = b, // OK; use Y::b
|
|
int j = c, // OK; use Y::Nested::c
|
|
int k = j, // expected-error{{default argument references parameter 'j'}}
|
|
int l = a, // expected-error{{invalid use of nonstatic data member 'a'}}
|
|
Nested* self = this, // expected-error{{invalid use of 'this' outside of a nonstatic member function}}
|
|
int m); // expected-error{{missing default argument on parameter 'm'}}
|
|
static int c;
|
|
Nested(int i = 42);
|
|
};
|
|
|
|
int mem7(Nested n = Nested());
|
|
|
|
static int b;
|
|
};
|
|
|
|
int Y::mem3(int i = b) { return i; } // OK; use X::b
|
|
|
|
int Y::mem4(int i = a) // expected-error{{invalid use of nonstatic data member 'a'}}
|
|
{ return i; }
|
|
|
|
|
|
// Try to verify that default arguments interact properly with copy
|
|
// constructors.
|
|
class Z {
|
|
public:
|
|
Z(Z&, int i = 17); // expected-note 3 {{candidate constructor}}
|
|
|
|
void f(Z& z) {
|
|
Z z2; // expected-error{{no matching constructor for initialization}}
|
|
Z z3(z);
|
|
}
|
|
|
|
void test_Z(const Z& z) {
|
|
Z z2(z); // expected-error{{no matching constructor for initialization of 'Z'}}
|
|
}
|
|
};
|
|
|
|
void test_Z(const Z& z) {
|
|
Z z2(z); // expected-error{{no matching constructor for initialization of 'Z'}}
|
|
}
|
|
|
|
struct ZZ {
|
|
static ZZ g(int = 17);
|
|
|
|
void f(ZZ z = g()); // expected-error{{no matching constructor for initialization}} \
|
|
// expected-note{{passing argument to parameter 'z' here}}
|
|
|
|
ZZ(ZZ&, int = 17); // expected-note{{candidate constructor}}
|
|
};
|
|
|
|
// http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#325
|
|
class C2 {
|
|
static void g(int = f()); // expected-error{{use of default argument to function 'f' that is declared later in class 'C2'}}
|
|
static int f(int = 10); // expected-note{{default argument declared here}}
|
|
};
|
|
|
|
// Make sure we actually parse the default argument for an inline definition
|
|
class XX {
|
|
void A(int length = -1 ) { }
|
|
void B() { A(); }
|
|
};
|