llvm-project/clang/test/SemaCXX/for-range-dereference.cpp

90 lines
3.4 KiB
C++

// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
struct Data { };
struct T {
Data *begin();
Data *end();
};
struct NoBegin {
Data *end();
};
struct DeletedEnd : public T {
Data *begin();
Data *end() = delete; //expected-note {{'end' has been explicitly marked deleted here}}
};
struct DeletedADLBegin { };
int* begin(DeletedADLBegin) = delete; //expected-note {{candidate function has been explicitly deleted}} \
expected-note 6 {{candidate function not viable: no known conversion}}
struct PrivateEnd {
Data *begin();
private:
Data *end(); // expected-note 2 {{declared private here}}
};
struct ADLNoEnd { };
Data * begin(ADLNoEnd); // expected-note 7 {{candidate function not viable: no known conversion}}
struct OverloadedStar {
T operator*();
};
void f() {
T t;
for (auto i : t) { }
T *pt;
for (auto i : pt) { } // expected-error{{invalid range expression of type 'T *'; did you mean to dereference it with '*'?}}
int arr[10];
for (auto i : arr) { }
int (*parr)[10];
for (auto i : parr) { }// expected-error{{invalid range expression of type 'int (*)[10]'; did you mean to dereference it with '*'?}}
NoBegin NB;
for (auto i : NB) { }// expected-error{{invalid range expression of type 'NoBegin'; no viable 'begin' function available}}
NoBegin *pNB;
for (auto i : pNB) { }// expected-error{{invalid range expression of type 'NoBegin *'; no viable 'begin' function available}}
NoBegin **ppNB;
for (auto i : ppNB) { }// expected-error{{invalid range expression of type 'NoBegin **'; no viable 'begin' function available}}
NoBegin *****pppppNB;
for (auto i : pppppNB) { }// expected-error{{invalid range expression of type 'NoBegin *****'; no viable 'begin' function available}}
ADLNoEnd ANE;
for (auto i : ANE) { } // expected-error{{invalid range expression of type 'ADLNoEnd'; no viable 'end' function available}}
ADLNoEnd *pANE;
for (auto i : pANE) { } // expected-error{{invalid range expression of type 'ADLNoEnd *'; no viable 'begin' function available}}
DeletedEnd DE;
for (auto i : DE) { } // expected-error{{attempt to use a deleted function}} \
expected-note {{when looking up 'end' function for range expression of type 'DeletedEnd'}}
DeletedEnd *pDE;
for (auto i : pDE) { } // expected-error {{invalid range expression of type 'DeletedEnd *'; no viable 'begin' function available}}
PrivateEnd PE;
// FIXME: This diagnostic should be improved, as it does not specify that
// the range is invalid.
for (auto i : PE) { } // expected-error{{'end' is a private member of 'PrivateEnd'}}
PrivateEnd *pPE;
for (auto i : pPE) { }// expected-error {{invalid range expression of type 'PrivateEnd *'}}
// expected-error@-1 {{'end' is a private member of 'PrivateEnd'}}
DeletedADLBegin DAB;
for (auto i : DAB) { } // expected-error {{call to deleted function 'begin'}}\
expected-note {{when looking up 'begin' function for range expression of type 'DeletedADLBegin'}}
OverloadedStar OS;
for (auto i : *OS) { }
for (auto i : OS) { } // expected-error {{invalid range expression of type 'OverloadedStar'; did you mean to dereference it with '*'?}}
for (Data *p : pt) { } // expected-error {{invalid range expression of type 'T *'; did you mean to dereference it with '*'?}}
// expected-error@-1 {{no viable conversion from 'Data' to 'Data *'}}
// expected-note@4 {{selected 'begin' function with iterator type 'Data *'}}
}