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82 lines
1.3 KiB
82 lines
1.3 KiB
/*
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* Copyright (c) 2018-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include <stdlib.h>
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#include <vector>
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struct foo {
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int* val;
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};
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struct list {
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struct list* next;
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struct foo* foo;
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};
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int invalidate_node_alias_bad(struct list* head, int cond) {
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int* result = 0;
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struct list* x = head;
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if (cond) {
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result = x->next->foo->val;
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delete result;
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} else {
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x = x->next;
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struct list* y = x->next;
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result = x->foo->val;
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delete result;
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}
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return *result;
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}
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void list_delete_ok(struct list** l) {
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auto head = *l;
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*l = nullptr;
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while (head) {
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auto tmp = head;
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head = head->next;
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if (tmp->foo) {
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free(tmp->foo);
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tmp->foo = nullptr;
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}
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}
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}
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struct BasicStruct {
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void some_method() {}
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BasicStruct();
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~BasicStruct();
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};
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int nested_loops_ok() {
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while (true) {
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BasicStruct x;
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for (;;) {
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x.some_method();
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}
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}
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}
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extern bool some_bool();
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extern BasicStruct mk_basic_struct();
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void cond_inside_loop_ok() {
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while (true) {
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BasicStruct x;
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if (some_bool()) {
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x = mk_basic_struct();
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}
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x.some_method();
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}
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}
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void nested_loops3_ok(std::vector<BasicStruct>* c) {
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for (auto& b : *c) {
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(&b)->~BasicStruct();
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}
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}
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