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