Ray's playground

摘要： 1#include<iostream>2#include<bitset>3usingnamespacestd;45intmain()6{7bitset<16>a(0xff01);8cout<<"a:"<<a<<endl;910bitset<32>b("100010");11cout<<"b:"<<b<<endl;12cout<<"countofb:"<<b.count()& 阅读全文

摘要： Prefer pass-by-reference-to-const over pass-by-value. It's typically more efficient and it avoids the slicing problem. The rule doesn't apply to built-in types and STL iterator and function object types. For them, pass-by-value is usually appropriate. 阅读全文

摘要： Class design is type design. Before defining a new type, be sure to consider all the issues discussed in this Item. 阅读全文

摘要： Good interfaces are easy to use correctly and hard to use incorrectly. Your should strive for these characteristics in all your interfaces. Ways to facilitate correct use include consistency in interfaces and behavioral compatibility with built-in types. Ways to prevent errors include creating new . 阅读全文