llvm-project/clang/test/SemaOpenCLCXX/newdelete.clcpp

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// RUN: %clang_cc1 %s -triple spir-unknown-unknown -pedantic -verify -fsyntax-only
class A {
public:
A() : x(21) {}
int x;
};
typedef __SIZE_TYPE__ size_t;
class B {
public:
B() : bx(42) {}
void *operator new(size_t);
void operator delete(void *ptr);
int bx;
};
// There are no global user-defined new operators at this point. Test that clang
// rejects these gracefully.
void test_default_new_delete(void *buffer, A **pa) {
A *a = new A; // expected-error {{'default new' is not supported in C++ for OpenCL}}
delete a; // expected-error {{'default delete' is not supported in C++ for OpenCL}}
*pa = new (buffer) A; // expected-error {{use of placement new requires explicit declaration}}
}
// expected-note@+1 {{candidate function not viable: requires 2 arguments, but 1 was provided}}
void *operator new(size_t _s, void *ptr) noexcept {
return ptr;
}
// expected-note@+1 {{candidate function not viable: requires 2 arguments, but 1 was provided}}
void *operator new[](size_t _s, void *ptr) noexcept {
return ptr;
}
void test_new_delete(void *buffer, A **a, B **b) {
*a = new A; // expected-error {{no matching function for call to 'operator new'}}
delete a; // expected-error {{'default delete' is not supported in C++ for OpenCL}}
*a = new A[20]; // expected-error {{no matching function for call to 'operator new[]'}}
delete[] *a; // expected-error {{'default delete' is not supported in C++ for OpenCL}}
// User-defined placement new is supported.
*a = new (buffer) A;
// User-defined placement new[] is supported.
*a = new (buffer) A[30];
// User-defined new is supported.
*b = new B;
// User-defined delete is supported.
delete *b;
}