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book: typo fix #203 #204

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Merged
merged 1 commit into from
Aug 14, 2021
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book: typo fix #203 #204

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2 changes: 1 addition & 1 deletion book/en-us/03-runtime.md
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Expand Up @@ -345,7 +345,7 @@ int main()

const std::string& lv2 = lv1 + lv1; // legal, const lvalue reference can extend temp variable's lifecycle
// lv2 += "Test"; // illegal, const ref can't be modified
std::cout << lv2 << std::endl; // string,string
std::cout << lv2 << std::endl; // string,string,

std::string&& rv2 = lv1 + lv2; // legal, rvalue ref extend lifecycle
rv2 += "string"; // legal, non-const reference can be modified
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2 changes: 1 addition & 1 deletion book/zh-cn/03-runtime.md
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Expand Up @@ -293,7 +293,7 @@ int main()

const std::string& lv2 = lv1 + lv1; // 合法, 常量左值引用能够延长临时变量的生命周期
// lv2 += "Test"; // 非法, 常量引用无法被修改
std::cout << lv2 << std::endl; // string,string
std::cout << lv2 << std::endl; // string,string,

std::string&& rv2 = lv1 + lv2; // 合法, 右值引用延长临时对象生命周期
rv2 += "Test"; // 合法, 非常量引用能够修改临时变量
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