243 lines
10 KiB
C++
243 lines
10 KiB
C++
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// RUN: %clang_cc1 -fsyntax-only -verify %s
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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
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int f(double); // expected-note{{candidate function}}
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int f(int); // expected-note{{candidate function}}
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int (*pfd)(double) = f; // selects f(double)
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int (*pfd2)(double) = &f; // selects f(double)
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int (*pfd3)(double) = ((&((f)))); // selects f(double)
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int (*pfi)(int) = &f; // selects f(int)
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// FIXME: This error message is not very good. We need to keep better
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// track of what went wrong when the implicit conversion failed to
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// give a better error message here.
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int (*pfe)(...) = &f; // expected-error{{address of overloaded function 'f' does not match required type 'int (...)'}}
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int (&rfi)(int) = f; // selects f(int)
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int (&rfd)(double) = f; // selects f(double)
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void g(int (*fp)(int)); // expected-note{{candidate function}}
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void g(int (*fp)(float));
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void g(int (*fp)(double)); // expected-note{{candidate function}}
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int g1(int);
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int g1(char);
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int g2(int);
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int g2(double);
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template<typename T> T g3(T);
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int g3(int);
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int g3(char);
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void g_test() {
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g(g1);
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g(g2); // expected-error{{call to 'g' is ambiguous}}
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g(g3);
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}
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template<typename T> T h1(T);
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template<typename R, typename A1> R h1(A1);
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int h1(char);
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void ha(int (*fp)(int));
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void hb(int (*fp)(double));
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void h_test() {
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ha(h1);
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hb(h1);
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}
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struct A { };
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void f(void (*)(A *));
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struct B
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{
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void g() { f(d); }
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void d(void *);
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static void d(A *);
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};
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struct C {
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C &getC() {
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return makeAC; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}}
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}
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// FIXME: filter by const so we can unambiguously suggest '()' & point to just the one candidate, probably
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C &makeAC(); // expected-note{{possible target for call}}
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const C &makeAC() const; // expected-note{{possible target for call}}
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static void f(); // expected-note{{candidate function}}
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static void f(int); // expected-note{{candidate function}}
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void g() {
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int (&fp)() = f; // expected-error{{address of overloaded function 'f' does not match required type 'int ()'}}
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}
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template<typename T>
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void q1(int); // expected-note{{possible target for call}}
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template<typename T>
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void q2(T t = T()); // expected-note{{possible target for call}}
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template<typename T>
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void q3(); // expected-note{{possible target for call}}
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template<typename T1, typename T2>
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void q4(); // expected-note{{possible target for call}}
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template<typename T1 = int>
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#if __cplusplus <= 199711L // C++03 or earlier modes
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// expected-warning@-2{{default template arguments for a function template are a C++11 extension}}
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#endif
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void q5(); // expected-note{{possible target for call}}
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void h() {
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// Do not suggest '()' since an int argument is required
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q1<int>; // expected-error-re{{reference to non-static member function must be called{{$}}}}
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// Suggest '()' since there's a default value for the only argument & the
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// type argument is already provided
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q2<int>; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}}
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// Suggest '()' since no arguments are required & the type argument is
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// already provided
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q3<int>; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}}
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// Do not suggest '()' since another type argument is required
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q4<int>; // expected-error-re{{reference to non-static member function must be called{{$}}}}
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// Suggest '()' since the type parameter has a default value
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q5; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}}
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}
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};
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// PR6886
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namespace test0 {
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void myFunction(void (*)(void *));
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class Foo {
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void foo();
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static void bar(void*);
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static void bar();
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};
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void Foo::foo() {
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myFunction(bar);
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}
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}
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namespace PR7971 {
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struct S {
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void g() {
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f(&g);
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}
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void f(bool (*)(int, char));
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static bool g(int, char);
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};
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}
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namespace PR8033 {
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template <typename T1, typename T2> int f(T1 *, const T2 *); // expected-note {{candidate function [with T1 = const int, T2 = int]}}
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template <typename T1, typename T2> int f(const T1 *, T2 *); // expected-note {{candidate function [with T1 = int, T2 = const int]}}
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int (*p)(const int *, const int *) = f; // expected-error{{address of overloaded function 'f' is ambiguous}}
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}
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namespace PR8196 {
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template <typename T> struct mcdata {
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typedef int result_type;
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};
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template <class T>
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typename mcdata<T>::result_type wrap_mean(mcdata<T> const&);
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void add_property(double(*)(mcdata<double> const &)); // expected-note{{candidate function not viable: no overload of 'wrap_mean' matching}}
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void f() {
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add_property(&wrap_mean); // expected-error{{no matching function for call to 'add_property'}}
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}
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}
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namespace PR7425 {
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template<typename T>
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void foo()
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{
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}
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struct B
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{
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template<typename T>
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B(const T&)
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{
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}
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};
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void bar(const B& b)
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{
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}
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void bar2(const B& b = foo<int>)
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{
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}
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void test(int argc, char** argv)
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{
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bar(foo<int>);
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bar2();
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}
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}
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namespace test1 {
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void fun(int x) {}
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void parameter_number() {
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void (*ptr1)(int, int) = &fun; // expected-error {{cannot initialize a variable of type 'void (*)(int, int)' with an rvalue of type 'void (*)(int)': different number of parameters (2 vs 1)}}
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void (*ptr2)(int, int);
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ptr2 = &fun; // expected-error {{incompatible function pointer types assigning to 'void (*)(int, int)' from 'void (*)(int)'}}
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}
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void parameter_mismatch() {
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void (*ptr1)(double) = &fun; // expected-error {{cannot initialize a variable of type 'void (*)(double)' with an rvalue of type 'void (*)(int)': type mismatch at 1st parameter ('double' vs 'int')}}
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void (*ptr2)(double);
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ptr2 = &fun; // expected-error {{incompatible function pointer types assigning to 'void (*)(double)' from 'void (*)(int)'}}
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}
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void return_type_test() {
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int (*ptr1)(int) = &fun; // expected-error {{cannot initialize a variable of type 'int (*)(int)' with an rvalue of type 'void (*)(int)': different return type ('int' vs 'void')}}
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int (*ptr2)(int);
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ptr2 = &fun; // expected-error {{incompatible function pointer types assigning to 'int (*)(int)' from 'void (*)(int)'}}
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}
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int foo(double x, double y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}}
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int foo(int x, int y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}}
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int foo(double x) {return 0;} // expected-note {{candidate function has type mismatch at 1st parameter (expected 'int' but has 'double')}}
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double foo(float x, float y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}}
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double foo(int x, float y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}}
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double foo(float x) {return 0;} // expected-note {{candidate function has type mismatch at 1st parameter (expected 'int' but has 'float')}}
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double foo(int x) {return 0;} // expected-note {{candidate function has different return type ('int' expected but has 'double')}}
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int (*ptr)(int) = &foo; // expected-error {{address of overloaded function 'foo' does not match required type 'int (int)'}}
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struct Qualifiers {
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void N() {};
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void C() const {};
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void V() volatile {};
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void R() __restrict {};
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void CV() const volatile {};
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void CR() const __restrict {};
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void VR() volatile __restrict {};
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void CVR() const volatile __restrict {};
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};
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void QualifierTest() {
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void (Qualifiers::*X)();
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X = &Qualifiers::C; // expected-error-re {{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} const': different qualifiers (unqualified vs 'const')}}
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X = &Qualifiers::V; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} volatile': different qualifiers (unqualified vs 'volatile')}}
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X = &Qualifiers::R; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} __restrict': different qualifiers (unqualified vs '__restrict')}}
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X = &Qualifiers::CV; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} const volatile': different qualifiers (unqualified vs 'const volatile')}}
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X = &Qualifiers::CR; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} const __restrict': different qualifiers (unqualified vs 'const __restrict')}}
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X = &Qualifiers::VR; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} volatile __restrict': different qualifiers (unqualified vs 'volatile __restrict')}}
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X = &Qualifiers::CVR; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} const volatile __restrict': different qualifiers (unqualified vs 'const volatile __restrict')}}
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}
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struct Dummy {
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void N() {};
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};
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void (Qualifiers::*X)() = &Dummy::N; // expected-error-re{{cannot initialize a variable of type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' with an rvalue of type 'void (test1::Dummy::*)(){{( __attribute__\(\(thiscall\)\))?}}': different classes ('test1::Qualifiers' vs 'test1::Dummy')}}
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}
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template <typename T> class PR16561 {
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virtual bool f() { if (f) {} return false; } // expected-error {{reference to non-static member function must be called}}
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};
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