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-rw-r--r--clang/test/SemaCXX/default2.cpp124
1 files changed, 124 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/default2.cpp b/clang/test/SemaCXX/default2.cpp
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+++ b/clang/test/SemaCXX/default2.cpp
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+// 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 non-static 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 non-static 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 non-static data member 'a'}}
+ Nested* self = this, // expected-error{{invalid use of 'this' outside of a non-static 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 non-static 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(); }
+};