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2021年9月9日
Effective C++ 笔记 —— Item 26: Postpone variable definitions as long as possible.
摘要： This suggests the real meaning of "as long as possible" in this Item’s title. Not only should you postpone a variable's definition until right before 阅读全文
posted @ 2021-09-09 16:58 MyCPlusPlus 阅读(93) 评论(0) 推荐(0)
Effective C++ 笔记 —— Item 25: Consider support for a non-throwing swap.
摘要： To swap the values of two objects is to give each the other's value. By default, swapping is accomplished via the standard swap algorithm. Its typical 阅读全文
posted @ 2021-09-09 16:13 MyCPlusPlus 阅读(72) 评论(0) 推荐(0)
2021年9月7日
Effective C++ 笔记 —— Item 24: Declare non-member functions when type conversions should apply to all parameters.
摘要： You might start your Rational class this way: class Rational { public: Rational(int numerator = 0, // ctor is deliberately not explicit; int denominat 阅读全文
posted @ 2021-09-07 18:25 MyCPlusPlus 阅读(96) 评论(0) 推荐(0)
Effective C++ 笔记 —— Item 23: Prefer non-member non-friend functions to member functions.
摘要： Imagine a class for representing web browsers. Among the many functions such a class might offer are those to clear the cache of downloaded elements, 阅读全文
posted @ 2021-09-07 17:33 MyCPlusPlus 阅读(137) 评论(0) 推荐(0)
Effective C++ 笔记 —— Item 22: Declare data members private.
摘要： If everything in the public interface is a function, clients won't have to scratch their heads trying to remember whether to use parentheses when they 阅读全文
posted @ 2021-09-07 17:02 MyCPlusPlus 阅读(39) 评论(0) 推荐(0)
Effective C++ 笔记 —— Item 21: Don't try to return a reference when you must return an object.
摘要： Consider a class for representing rational numbers, including a function for multiplying two rationals together: class Rational { public: Rational(int 阅读全文
posted @ 2021-09-07 16:35 MyCPlusPlus 阅读(90) 评论(0) 推荐(0)
Effective C++ 笔记 —— Item 20: Prefer pass-by-reference-to-const to pass-by-value.
摘要： By default, C++ passes objects to and from functions by value (a characteristic it inherits from C).The end result is that passing an object by value 阅读全文
posted @ 2021-09-07 15:42 MyCPlusPlus 阅读(133) 评论(0) 推荐(0)
Effective C++ 笔记 —— Item 19: Treat class design as type design.
摘要： How do you design effective classes? First, you must understand the issues you face. Virtually every class requires that you confront the following qu 阅读全文
posted @ 2021-09-07 11:18 MyCPlusPlus 阅读(71) 评论(0) 推荐(0)
Effective C++ 笔记 —— Item 18: Make interfaces easy to use correctly and hard to use incorrectly.
摘要： Developing interfaces that are easy to use correctly and hard to use incorrectly requires that you consider the kinds of mistakes that clients might m 阅读全文
posted @ 2021-09-07 10:50 MyCPlusPlus 阅读(55) 评论(0) 推荐(0)
2021年9月3日
Effective C++ 笔记 —— Item 17: Store newed objects in smart pointers in standalone statements.
摘要： Suppose we have a function to reveal our processing priority and a second function to do some processing on a dynamically allocated Widget in accord w 阅读全文
posted @ 2021-09-03 09:37 MyCPlusPlus 阅读(39) 评论(0) 推荐(0)
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