C++ styles

最新推荐文章于 2025-12-16 21:19:17 发布

原创最新推荐文章于 2025-12-16 21:19:17 发布 · 376 阅读

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#c++ #overloading #class #path #styles #file

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本文提出了五个重要的编码规范建议：单一职责原则，充分利用 'const'，变量初始化的重要性，正确理解继承中的'is-a'关系以及如何避免函数重载隐藏问题。

1. An entity (function, class, etc) only has one compact responsibility.

design small class, and seperate incompact functions.

2. Use 'const' as more as possible.

for example:

class Paras{ static const int threshold = 200; static const int count; } /*place it in .h file */ const int Paras:: count = 10; /*place it in .cpp file*/

3. Always initialize variables.

For example:

char path[MAX_LEN]; path[0] = '/0'; or char path[MAX_PATH] = {"/0"}

4. derivation is 'is-a' relation, which means 'words-like-a'

5. hide overloading functions.

For example

class A { virtual void foo(int); virtual void foo(int, int); void foo(); } class B : public A { /* using A::foo; */ virtual void foo(int); } B b; b.foo() //error b.foo(1, 2) //error

The method foo(int, int) and foo() are hidden after derivation. The solution is to add one sentence 'using A::foo' into B (just remove the comment tag in above example ) .