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| // RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -fblocks -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete,cplusplus.NewDeleteLeaks -std=c++11 -DLEAKS -fblocks -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -fblocks -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete,cplusplus.NewDeleteLeaks -std=c++11 -DLEAKS -fblocks -DTEST_INLINABLE_ALLOCATORS -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 *alloca(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
int *p5 = (int *)alloca(sizeof(int));
free(p5); // no warn
}
void testDeleteMalloced() {
int *p1 = (int *)malloc(sizeof(int));
delete p1; // no warn
int *p2 = (int *)__builtin_alloca(sizeof(int));
delete p2; // no warn
}
void testUseZeroAllocatedMalloced() {
int *p1 = (int *)malloc(0);
*p1 = 1; // 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}}
}
|