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67 lines
1.2 KiB
67 lines
1.2 KiB
/*
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* Copyright (c) 2017 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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class my_class {
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int idx;
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int arr[10];
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void set_a(int n) { idx = n; }
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int id(int n) { return n; }
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public:
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int access_Bad() {
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set_a(10);
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return arr[idx];
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}
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int access2_Bad() {
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int n = 10;
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return arr[id(n)];
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}
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int access_nth(int n) { return arr[n]; }
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};
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void access_after_new_Good() {
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my_class* x = new my_class();
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x->access_nth(5);
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}
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void access_after_new_Bad() {
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my_class* x = new my_class();
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x->access_nth(15);
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}
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#include <stdlib.h>
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class my_class2 {
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public:
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int a[5];
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};
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void array_member_malloc_Good() {
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my_class2* x = (my_class2*)malloc(sizeof(my_class2));
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x->a[0] = 0;
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}
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void array_member_malloc_Bad() {
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my_class2* x = (my_class2*)malloc(sizeof(my_class2));
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x->a[10] = 0;
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}
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class my_class3 {
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public:
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my_class2 b;
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};
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void array_member_malloc2_Bad() {
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my_class3* x = (my_class3*)malloc(sizeof(my_class3));
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x->b.a[10] = 0;
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}
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