xref: /aosp_15_r20/external/clang/test/CXX/class/class.mem/p1b.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // The first run checks that the correct errors are generated,
2*67e74705SXin Li // implicitly checking the order of default argument parsing:
3*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -verify %s
4*67e74705SXin Li // The second run checks the order of inline method definitions:
5*67e74705SXin Li // RUN: not %clang_cc1 -fsyntax-only %s 2> %t
6*67e74705SXin Li // RUN: FileCheck %s < %t
7*67e74705SXin Li 
8*67e74705SXin Li class A {
9*67e74705SXin Li public:
a1()10*67e74705SXin Li   void a1() {
11*67e74705SXin Li     B b = B();
12*67e74705SXin Li   }
13*67e74705SXin Li 
14*67e74705SXin Li   class B;
15*67e74705SXin Li   void a2(B b = B()); // expected-error{{use of default argument to function 'B' that is declared later in class 'B'}}
16*67e74705SXin Li 
17*67e74705SXin Li   void a3(int a = 42);
18*67e74705SXin Li 
19*67e74705SXin Li   // CHECK: error: use of undeclared identifier 'first'
20*67e74705SXin Li   void a4(int a = first); // expected-error{{use of undeclared identifier 'first'}}
21*67e74705SXin Li 
22*67e74705SXin Li   class B {
23*67e74705SXin Li   public:
B(int b=42)24*67e74705SXin Li     B(int b = 42) { // expected-note{{default argument declared here}}
25*67e74705SXin Li       A a;
26*67e74705SXin Li       a.a3();
27*67e74705SXin Li       a.a6();
28*67e74705SXin Li     }
29*67e74705SXin Li 
30*67e74705SXin Li     void b1(A a = A()); // expected-error{{use of default argument to function 'A' that is declared later in class 'A'}}
31*67e74705SXin Li 
32*67e74705SXin Li     // CHECK: error: use of undeclared identifier 'second'
33*67e74705SXin Li     void b2(int a = second); // expected-error{{use of undeclared identifier 'second'}}
34*67e74705SXin Li   };
35*67e74705SXin Li 
a5()36*67e74705SXin Li   void a5() {
37*67e74705SXin Li     B b = B();
38*67e74705SXin Li   }
39*67e74705SXin Li 
40*67e74705SXin Li   void a6(B b = B());
41*67e74705SXin Li 
42*67e74705SXin Li   A(int a = 42); // expected-note{{default argument declared here}}
43*67e74705SXin Li 
44*67e74705SXin Li   // CHECK: error: use of undeclared identifier 'third'
45*67e74705SXin Li   void a7(int a = third); // expected-error{{use of undeclared identifier 'third'}}
46*67e74705SXin Li };
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