243 lines
10 KiB
C++
243 lines
10 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
|
|
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
|
|
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
|
|
int f(double); // expected-note{{candidate function}}
|
|
int f(int); // expected-note{{candidate function}}
|
|
|
|
int (*pfd)(double) = f; // selects f(double)
|
|
int (*pfd2)(double) = &f; // selects f(double)
|
|
int (*pfd3)(double) = ((&((f)))); // selects f(double)
|
|
int (*pfi)(int) = &f; // selects f(int)
|
|
// FIXME: This error message is not very good. We need to keep better
|
|
// track of what went wrong when the implicit conversion failed to
|
|
// give a better error message here.
|
|
int (*pfe)(...) = &f; // expected-error{{address of overloaded function 'f' does not match required type 'int (...)'}}
|
|
int (&rfi)(int) = f; // selects f(int)
|
|
int (&rfd)(double) = f; // selects f(double)
|
|
|
|
void g(int (*fp)(int)); // expected-note{{candidate function}}
|
|
void g(int (*fp)(float));
|
|
void g(int (*fp)(double)); // expected-note{{candidate function}}
|
|
|
|
int g1(int);
|
|
int g1(char);
|
|
|
|
int g2(int);
|
|
int g2(double);
|
|
|
|
template<typename T> T g3(T);
|
|
int g3(int);
|
|
int g3(char);
|
|
|
|
void g_test() {
|
|
g(g1);
|
|
g(g2); // expected-error{{call to 'g' is ambiguous}}
|
|
g(g3);
|
|
}
|
|
|
|
template<typename T> T h1(T);
|
|
template<typename R, typename A1> R h1(A1);
|
|
int h1(char);
|
|
|
|
void ha(int (*fp)(int));
|
|
void hb(int (*fp)(double));
|
|
|
|
void h_test() {
|
|
ha(h1);
|
|
hb(h1);
|
|
}
|
|
|
|
struct A { };
|
|
void f(void (*)(A *));
|
|
|
|
struct B
|
|
{
|
|
void g() { f(d); }
|
|
void d(void *);
|
|
static void d(A *);
|
|
};
|
|
|
|
struct C {
|
|
C &getC() {
|
|
return makeAC; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}}
|
|
}
|
|
|
|
// FIXME: filter by const so we can unambiguously suggest '()' & point to just the one candidate, probably
|
|
C &makeAC(); // expected-note{{possible target for call}}
|
|
const C &makeAC() const; // expected-note{{possible target for call}}
|
|
|
|
static void f(); // expected-note{{candidate function}}
|
|
static void f(int); // expected-note{{candidate function}}
|
|
|
|
void g() {
|
|
int (&fp)() = f; // expected-error{{address of overloaded function 'f' does not match required type 'int ()'}}
|
|
}
|
|
|
|
template<typename T>
|
|
void q1(int); // expected-note{{possible target for call}}
|
|
template<typename T>
|
|
void q2(T t = T()); // expected-note{{possible target for call}}
|
|
template<typename T>
|
|
void q3(); // expected-note{{possible target for call}}
|
|
template<typename T1, typename T2>
|
|
void q4(); // expected-note{{possible target for call}}
|
|
template<typename T1 = int>
|
|
#if __cplusplus <= 199711L // C++03 or earlier modes
|
|
// expected-warning@-2{{default template arguments for a function template are a C++11 extension}}
|
|
#endif
|
|
void q5(); // expected-note{{possible target for call}}
|
|
|
|
void h() {
|
|
// Do not suggest '()' since an int argument is required
|
|
q1<int>; // expected-error-re{{reference to non-static member function must be called{{$}}}}
|
|
// Suggest '()' since there's a default value for the only argument & the
|
|
// type argument is already provided
|
|
q2<int>; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}}
|
|
// Suggest '()' since no arguments are required & the type argument is
|
|
// already provided
|
|
q3<int>; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}}
|
|
// Do not suggest '()' since another type argument is required
|
|
q4<int>; // expected-error-re{{reference to non-static member function must be called{{$}}}}
|
|
// Suggest '()' since the type parameter has a default value
|
|
q5; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}}
|
|
}
|
|
};
|
|
|
|
// PR6886
|
|
namespace test0 {
|
|
void myFunction(void (*)(void *));
|
|
|
|
class Foo {
|
|
void foo();
|
|
|
|
static void bar(void*);
|
|
static void bar();
|
|
};
|
|
|
|
void Foo::foo() {
|
|
myFunction(bar);
|
|
}
|
|
}
|
|
|
|
namespace PR7971 {
|
|
struct S {
|
|
void g() {
|
|
f(&g);
|
|
}
|
|
void f(bool (*)(int, char));
|
|
static bool g(int, char);
|
|
};
|
|
}
|
|
|
|
namespace PR8033 {
|
|
template <typename T1, typename T2> int f(T1 *, const T2 *); // expected-note {{candidate function [with T1 = const int, T2 = int]}}
|
|
template <typename T1, typename T2> int f(const T1 *, T2 *); // expected-note {{candidate function [with T1 = int, T2 = const int]}}
|
|
int (*p)(const int *, const int *) = f; // expected-error{{address of overloaded function 'f' is ambiguous}}
|
|
}
|
|
|
|
namespace PR8196 {
|
|
template <typename T> struct mcdata {
|
|
typedef int result_type;
|
|
};
|
|
template <class T>
|
|
typename mcdata<T>::result_type wrap_mean(mcdata<T> const&);
|
|
void add_property(double(*)(mcdata<double> const &)); // expected-note{{candidate function not viable: no overload of 'wrap_mean' matching}}
|
|
void f() {
|
|
add_property(&wrap_mean); // expected-error{{no matching function for call to 'add_property'}}
|
|
}
|
|
}
|
|
|
|
namespace PR7425 {
|
|
template<typename T>
|
|
void foo()
|
|
{
|
|
}
|
|
|
|
struct B
|
|
{
|
|
template<typename T>
|
|
B(const T&)
|
|
{
|
|
}
|
|
};
|
|
|
|
void bar(const B& b)
|
|
{
|
|
}
|
|
|
|
void bar2(const B& b = foo<int>)
|
|
{
|
|
}
|
|
|
|
void test(int argc, char** argv)
|
|
{
|
|
bar(foo<int>);
|
|
bar2();
|
|
}
|
|
}
|
|
|
|
namespace test1 {
|
|
void fun(int x) {}
|
|
|
|
void parameter_number() {
|
|
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)}}
|
|
void (*ptr2)(int, int);
|
|
ptr2 = &fun; // expected-error {{assigning to 'void (*)(int, int)' from incompatible type 'void (*)(int)': different number of parameters (2 vs 1)}}
|
|
}
|
|
|
|
void parameter_mismatch() {
|
|
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')}}
|
|
void (*ptr2)(double);
|
|
ptr2 = &fun; // expected-error {{assigning to 'void (*)(double)' from incompatible type 'void (*)(int)': type mismatch at 1st parameter ('double' vs 'int')}}
|
|
}
|
|
|
|
void return_type_test() {
|
|
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')}}
|
|
int (*ptr2)(int);
|
|
ptr2 = &fun; // expected-error {{assigning to 'int (*)(int)' from incompatible type 'void (*)(int)': different return type ('int' vs 'void')}}
|
|
}
|
|
|
|
int foo(double x, double y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}}
|
|
int foo(int x, int y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}}
|
|
int foo(double x) {return 0;} // expected-note {{candidate function has type mismatch at 1st parameter (expected 'int' but has 'double')}}
|
|
double foo(float x, float y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}}
|
|
double foo(int x, float y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}}
|
|
double foo(float x) {return 0;} // expected-note {{candidate function has type mismatch at 1st parameter (expected 'int' but has 'float')}}
|
|
double foo(int x) {return 0;} // expected-note {{candidate function has different return type ('int' expected but has 'double')}}
|
|
|
|
int (*ptr)(int) = &foo; // expected-error {{address of overloaded function 'foo' does not match required type 'int (int)'}}
|
|
|
|
struct Qualifiers {
|
|
void N() {};
|
|
void C() const {};
|
|
void V() volatile {};
|
|
void R() __restrict {};
|
|
void CV() const volatile {};
|
|
void CR() const __restrict {};
|
|
void VR() volatile __restrict {};
|
|
void CVR() const volatile __restrict {};
|
|
};
|
|
|
|
|
|
void QualifierTest() {
|
|
void (Qualifiers::*X)();
|
|
X = &Qualifiers::C; // expected-error-re {{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} const': different qualifiers (none vs const)}}
|
|
X = &Qualifiers::V; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} volatile': different qualifiers (none vs volatile)}}
|
|
X = &Qualifiers::R; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} __restrict': different qualifiers (none vs restrict)}}
|
|
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 (none vs const and volatile)}}
|
|
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 (none vs const and restrict)}}
|
|
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 (none vs volatile and restrict)}}
|
|
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 (none vs const, volatile, and restrict)}}
|
|
}
|
|
|
|
struct Dummy {
|
|
void N() {};
|
|
};
|
|
|
|
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')}}
|
|
}
|
|
|
|
template <typename T> class PR16561 {
|
|
virtual bool f() { if (f) {} return false; } // expected-error {{reference to non-static member function must be called}}
|
|
};
|