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Diffstat (limited to 'clang/test/SemaCXX/default2.cpp')
-rw-r--r-- | clang/test/SemaCXX/default2.cpp | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/default2.cpp b/clang/test/SemaCXX/default2.cpp new file mode 100644 index 0000000..1626044 --- /dev/null +++ b/clang/test/SemaCXX/default2.cpp @@ -0,0 +1,124 @@ +// 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(); } +}; |