minix/external/bsd/llvm/dist/clang/test/Analysis/NewDelete-intersections.mm
Lionel Sambuc f4a2713ac8 Importing netbsd clang -- pristine
Change-Id: Ia40e9ffdf29b5dab2f122f673ff6802a58bc690f
2014-07-28 17:05:57 +02:00

74 lines
2 KiB
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// RUN: %clang_cc1 -analyze -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -fblocks -verify %s
// RUN: %clang_cc1 -analyze -analyzer-checker=core,cplusplus.NewDelete,alpha.cplusplus.NewDeleteLeaks -std=c++11 -DLEAKS -fblocks -verify %s
#include "Inputs/system-header-simulator-cxx.h"
#include "Inputs/system-header-simulator-objc.h"
typedef __typeof__(sizeof(int)) size_t;
extern "C" void *malloc(size_t);
extern "C" void free(void *);
//----------------------------------------------------------------------------
// Check for intersections with unix.Malloc and unix.MallocWithAnnotations
// checkers bounded with cplusplus.NewDelete.
//----------------------------------------------------------------------------
//----- malloc()/free() are subjects of unix.Malloc and unix.MallocWithAnnotations
void testMallocFreeNoWarn() {
int i;
free(&i); // no warn
int *p1 = (int *)malloc(sizeof(int));
free(++p1); // no warn
int *p2 = (int *)malloc(sizeof(int));
free(p2);
free(p2); // no warn
int *p3 = (int *)malloc(sizeof(int)); // no warn
int *p4 = (int *)malloc(sizeof(int));
free(p4);
int j = *p4; // no warn
}
void testDeleteMalloced() {
int *p = (int *)malloc(sizeof(int));
delete p; // no warn
}
//----- Test free standard new
void testFreeOpNew() {
void *p = operator new(0);
free(p);
}
#ifdef LEAKS
// expected-warning@-2 {{Potential leak of memory pointed to by 'p'}}
#endif
void testFreeNewExpr() {
int *p = new int;
free(p);
}
#ifdef LEAKS
// expected-warning@-2 {{Potential leak of memory pointed to by 'p'}}
#endif
void testObjcFreeNewed() {
int *p = new int;
NSData *nsdata = [NSData dataWithBytesNoCopy:p length:sizeof(int) freeWhenDone:1];
#ifdef LEAKS
// expected-warning@-2 {{Potential leak of memory pointed to by 'p'}}
#endif
}
void testFreeAfterDelete() {
int *p = new int;
delete p;
free(p); // expected-warning{{Use of memory after it is freed}}
}
void testStandardPlacementNewAfterDelete() {
int *p = new int;
delete p;
p = new(p) int; // expected-warning{{Use of memory after it is freed}}
}