llvm-project/clang/test/SemaCXX/function-redecl.cpp

134 lines
4.7 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify %s
int foo(int);
namespace N {
void f1() {
void foo(int); // okay
void bar(int); // expected-note 2{{previous declaration is here}}
}
void foo(int); // expected-note 3{{previous declaration is here}}
void f2() {
int foo(int); // expected-error {{functions that differ only in their return type cannot be overloaded}}
int bar(int); // expected-error {{functions that differ only in their return type cannot be overloaded}}
int baz(int); // expected-note {{previous declaration is here}}
{
int foo;
int bar;
int baz;
{
float foo(int); // expected-error {{functions that differ only in their return type cannot be overloaded}}
float bar(int); // expected-error {{functions that differ only in their return type cannot be overloaded}}
float baz(int); // expected-error {{functions that differ only in their return type cannot be overloaded}}
}
}
}
void f3() {
int foo(float);
{
float foo(int); // expected-error {{functions that differ only in their return type cannot be overloaded}}
}
}
}
class A {
void typocorrection(); // expected-note {{'typocorrection' declared here}}
};
void A::Notypocorrection() { // expected-error {{out-of-line definition of 'Notypocorrection' does not match any declaration in 'A'; did you mean 'typocorrection'}}
}
namespace test0 {
void dummy() {
void Bar(); // expected-note {{'Bar' declared here}}
class A {
friend void bar(); // expected-error {{no matching function 'bar' found in local scope; did you mean 'Bar'}}
};
}
}
class B {
void typocorrection(const int); // expected-note {{'typocorrection' declared here}}
void typocorrection(double);
};
void B::Notypocorrection(int) { // expected-error {{out-of-line definition of 'Notypocorrection' does not match any declaration in 'B'; did you mean 'typocorrection'}}
}
struct X { int f(); };
struct Y : public X {};
int Y::f() { return 3; } // expected-error {{out-of-line definition of 'f' does not match any declaration in 'Y'}}
namespace test1 {
struct Foo {
class Inner { };
};
}
class Bar {
void f(test1::Foo::Inner foo) const; // expected-note {{member declaration does not match because it is const qualified}}
};
using test1::Foo;
void Bar::f(Foo::Inner foo) { // expected-error {{out-of-line definition of 'f' does not match any declaration in 'Bar'}}
(void)foo;
}
class Crash {
public:
void GetCart(int count) const;
};
// This out-of-line definition was fine...
void Crash::cart(int count) const {} // expected-error {{out-of-line definition of 'cart' does not match any declaration in 'Crash'}}
// ...while this one crashed clang
void Crash::chart(int count) const {} // expected-error {{out-of-line definition of 'chart' does not match any declaration in 'Crash'}}
class TestConst {
public:
int getit() const; // expected-note {{member declaration does not match because it is const qualified}}
void setit(int); // expected-note {{member declaration does not match because it is not const qualified}}
};
int TestConst::getit() { // expected-error {{out-of-line definition of 'getit' does not match any declaration in 'TestConst'}}
return 1;
}
void TestConst::setit(int) const { // expected-error {{out-of-line definition of 'setit' does not match any declaration in 'TestConst'}}
}
struct J { int typo() const; };
int J::typo_() { return 3; } // expected-error {{out-of-line definition of 'typo_' does not match any declaration in 'J'}}
// Ensure we correct the redecl of Foo::isGood to Bar::Foo::isGood and not
// Foo::IsGood even though Foo::IsGood is technically a closer match since it
// already has a body. Also make sure Foo::beEvil is corrected to Foo::BeEvil
// since it is a closer match than Bar::Foo::beEvil and neither have a body.
namespace redecl_typo {
namespace Foo {
bool IsGood() { return false; }
void BeEvil(); // expected-note {{'BeEvil' declared here}}
}
namespace Bar {
namespace Foo {
bool isGood(); // expected-note {{'Bar::Foo::isGood' declared here}}
void beEvil();
}
}
bool Foo::isGood() { // expected-error {{out-of-line definition of 'isGood' does not match any declaration in namespace 'redecl_typo::Foo'; did you mean 'Bar::Foo::isGood'?}}
return true;
}
void Foo::beEvil() {} // expected-error {{out-of-line definition of 'beEvil' does not match any declaration in namespace 'redecl_typo::Foo'; did you mean 'BeEvil'?}}
}
struct CVQualFun {
void func(int a, int &b); // expected-note {{type of 2nd parameter of member declaration does not match definition ('int &' vs 'int')}}
};
void CVQualFun::func(const int a, int b) {} // expected-error {{out-of-line definition of 'func' does not match any declaration in 'CVQualFun'}}