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75 lines
1.2 KiB
75 lines
1.2 KiB
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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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 <atomic>
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#include <functional>
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#include <string>
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void get_closure(std::function<int()> closure);
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class Uninit {
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void closure_call_ok() {
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auto closure = [this]() { return 5; };
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get_closure(closure);
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}
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class MyClass {
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public:
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int i;
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int j;
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};
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void init_by_store(MyClass* x) {
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MyClass y{3, 5};
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reinterpret_cast<std::atomic<MyClass>*>(x)->store(
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y, std::memory_order_release);
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}
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void call_init_by_store_ok() {
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MyClass x;
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init_by_store(&x);
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int y = x.i;
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}
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};
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class Uninit2 {
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int f1;
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int f2;
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void may_read_f1(std::string s) {
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if (s.empty()) {
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int x = f1;
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}
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}
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void not_read_f1_ok() {
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Uninit2 o;
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o.may_read_f1("non empty string");
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}
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void read_f1_bad() {
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Uninit2 o;
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o.may_read_f1(std::string());
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}
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void may_read_f2(std::string s) {
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if (s.length() == 0) {
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int x = f1;
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}
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}
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void not_read_f2_ok() {
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Uninit2 o;
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o.may_read_f2("non empty string");
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}
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void read_f2_bad() {
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Uninit2 o;
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o.may_read_f2("");
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}
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};
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