47 lines · cpp
1// The first run checks that the correct errors are generated,2// implicitly checking the order of default argument parsing:3// RUN: %clang_cc1 -fsyntax-only -verify %s4// The second run checks the order of inline method definitions:5// RUN: not %clang_cc1 -fsyntax-only %s 2> %t6// RUN: FileCheck %s < %t7 8class A {9public:10 void a1() {11 B b = B();12 }13 14 class B;15 void a2(B b = B()); // expected-error{{use of default argument to function 'B' that is declared later in class 'B'}}16 17 void a3(int a = 42);18 19 // CHECK: error: use of undeclared identifier 'first'20 void a4(int a = first); // expected-error{{use of undeclared identifier 'first'}}21 22 class B {23 public:24 B(int b = 42) { // expected-note{{default argument declared here}}25 A a;26 a.a3();27 a.a6();28 }29 30 void b1(A a = A()); // expected-error{{use of default argument to function 'A' that is declared later in class 'A'}}31 32 // CHECK: error: use of undeclared identifier 'second'33 void b2(int a = second); // expected-error{{use of undeclared identifier 'second'}}34 };35 36 void a5() {37 B b = B();38 }39 40 void a6(B b = B());41 42 A(int a = 42); // expected-note{{default argument declared here}}43 44 // CHECK: error: use of undeclared identifier 'third'45 void a7(int a = third); // expected-error{{use of undeclared identifier 'third'}}46};47