| // RUN: clang -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, 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 h() |
| { |
| int i; |
| extern void h2(int x = sizeof(i)); // expected-error {{default argument references local variable 'i' of enclosing function}} |
| } |
| |
| void g2(int x, int y, int z = x + y); // expected-error {{default argument references parameter 'x'}} expected-error {{default argument references parameter 'y'}} |
| |
| void nondecl(int (*f)(int x = 5)) // {expected-error {{default arguments can only be specified}}} |
| { |
| void (*f2)(int = 17) // {expected-error {{default arguments can only be specified}}} |
| = (void (*)(int = 42))f; // {expected-error {{default arguments can only be specified}}} |
| } |
| |
| 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; |
| }; |
| |
| static int b; |
| |
| int (*f)(int = 17); // expected-error{{default arguments can only be specified for parameters in a function declaration}} |
| |
| void mem8(int (*fp)(int) = (int (*)(int = 17))0); // expected-error{{default arguments can only be specified for parameters in a function declaration}} |
| }; |
| |
| 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 2 {{candidate function}} |
| |
| 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 'z2'}} |
| } |
| }; |
| |
| void test_Z(const Z& z) { |
| Z z2(z); // expected-error{{no matching constructor for initialization of 'z2'}} |
| } |
| |
| struct ZZ { |
| void f(ZZ z = g()); // expected-error{{no matching constructor for initialization}} |
| |
| static ZZ g(int = 17); |
| |
| ZZ(ZZ&, int = 17); // expected-note{{candidate function}} |
| }; |