new-delete.cpp revision 636a7c42d42800f69caadcdea433312fd642a4b3
1c83ed049af2a2ed7ab94b8206fc0fec4da7e26dbDouglas Gregor// RUN: clang -fsyntax-only -verify %s 2c83ed049af2a2ed7ab94b8206fc0fec4da7e26dbDouglas Gregor 3b5a57a69e5fdac6dd9a92be717e279486c4a0128Sebastian Redl#include <stddef.h> 4b5a57a69e5fdac6dd9a92be717e279486c4a0128Sebastian Redl 54c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redlstruct S // expected-note {{candidate}} 64c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl{ 74c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl S(int, int, double); // expected-note {{candidate}} 84c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl S(double, int); // expected-note {{candidate}} expected-note {{candidate}} 94c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl S(float, int); // expected-note {{candidate}} expected-note {{candidate}} 104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl}; 114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redlstruct T; 12636a7c42d42800f69caadcdea433312fd642a4b3Sebastian Redlstruct U 13636a7c42d42800f69caadcdea433312fd642a4b3Sebastian Redl{ 14636a7c42d42800f69caadcdea433312fd642a4b3Sebastian Redl // A special new, to verify that the global version isn't used. 15636a7c42d42800f69caadcdea433312fd642a4b3Sebastian Redl void* operator new(size_t, S*); 16636a7c42d42800f69caadcdea433312fd642a4b3Sebastian Redl}; 174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 18b5a57a69e5fdac6dd9a92be717e279486c4a0128Sebastian Redlvoid* operator new(size_t); // expected-note {{candidate}} 19b5a57a69e5fdac6dd9a92be717e279486c4a0128Sebastian Redlvoid* operator new(size_t, int*); // expected-note {{candidate}} 20b5a57a69e5fdac6dd9a92be717e279486c4a0128Sebastian Redlvoid* operator new(size_t, float*); // expected-note {{candidate}} 21b5a57a69e5fdac6dd9a92be717e279486c4a0128Sebastian Redl 224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redlvoid good_news() 234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl{ 244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl int *pi = new int; 254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl float *pf = new (pi) float(); 264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl pi = new int(1); 274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl pi = new int('c'); 284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl const int *pci = new const int(); 294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl S *ps = new S(1, 2, 3.4); 30cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ps = new (pf) (S)(1, 2, 3.4); 314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl S *(*paps)[2] = new S*[*pi][2]; 324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ps = new (S[3])(1, 2, 3.4); 334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl typedef int ia4[4]; 344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ia4 *pai = new (int[3][4]); 35fb4ccd7152723ac6190eb379250cfe7516cfd1b8Sebastian Redl pi = ::new int; 36636a7c42d42800f69caadcdea433312fd642a4b3Sebastian Redl U *pu = new (ps) U; 374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 39c83ed049af2a2ed7ab94b8206fc0fec4da7e26dbDouglas Gregorvoid bad_news(int *ip) 404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl{ 414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl int i = 1; 424c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl (void)new; // expected-error {{missing type specifier}} 434c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl (void)new 4; // expected-error {{missing type specifier}} 444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl (void)new () int; // expected-error {{expected expression}} 45cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl (void)new int[1.1]; // expected-error {{array size expression must have integral or enumerated type, not 'double'}} 464c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl (void)new int[1][i]; // expected-error {{only the first dimension}} 474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl (void)new (int[1][i]); // expected-error {{only the first dimension}} 484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl (void)new int(*(S*)0); // expected-error {{incompatible type initializing}} 494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl (void)new int(1, 2); // expected-error {{initializer of a builtin type can only take one argument}} 504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl (void)new S(1); // expected-error {{no matching constructor}} 51c83ed049af2a2ed7ab94b8206fc0fec4da7e26dbDouglas Gregor (void)new S(1, 1); // expected-error {{call to constructor of 'S' is ambiguous}} 524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl (void)new const int; // expected-error {{must provide an initializer}} 53c83ed049af2a2ed7ab94b8206fc0fec4da7e26dbDouglas Gregor (void)new float*(ip); // expected-error {{incompatible type initializing 'int *', expected 'float *'}} 54cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // Undefined, but clang should reject it directly. 55cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl (void)new int[-1]; // expected-error {{array size is negative}} 56cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl (void)new int[*(S*)0]; // expected-error {{array size expression must have integral or enumerated type, not 'struct S'}} 57fb4ccd7152723ac6190eb379250cfe7516cfd1b8Sebastian Redl (void)::S::new int; // expected-error {{expected unqualified-id}} 58b5a57a69e5fdac6dd9a92be717e279486c4a0128Sebastian Redl (void)new (0, 0) int; // expected-error {{no matching function for call to 'operator new'}} 59636a7c42d42800f69caadcdea433312fd642a4b3Sebastian Redl (void)new (0L) int; // expected-error {{use of overloaded operator 'new' is ambiguous}} 60636a7c42d42800f69caadcdea433312fd642a4b3Sebastian Redl // This must fail, because the member version shouldn't be found. 61636a7c42d42800f69caadcdea433312fd642a4b3Sebastian Redl (void)::new ((S*)0) U; // expected-error {{no matching function for call to 'operator new'}} 624c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Some lacking cases due to lack of sema support. 634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 644c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redlvoid good_deletes() 664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl{ 674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl delete (int*)0; 684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl delete [](int*)0; 694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl delete (S*)0; 70fb4ccd7152723ac6190eb379250cfe7516cfd1b8Sebastian Redl ::delete (int*)0; 714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 734c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redlvoid bad_deletes() 744c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl{ 754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl delete 0; // expected-error {{cannot delete expression of type 'int'}} 764c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl delete [0] (int*)0; // expected-error {{expected ']'}} \ 7728eb7e992b9a266abb300da25b6d3c1557cec361Chris Lattner // expected-note {{to match this '['}} 784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl delete (void*)0; // expected-error {{cannot delete expression}} 794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl delete (T*)0; // expected-warning {{deleting pointer to incomplete type}} 80fb4ccd7152723ac6190eb379250cfe7516cfd1b8Sebastian Redl ::S::delete (int*)0; // expected-error {{expected unqualified-id}} 814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 82