2014 年 4月随笔档案 - aoun

vector

摘要：vector分配的是一块连续内存，所以在程序运行的过程中，vector在不断的重新组织内存，这样做的效率是比较低的。阅读全文

posted @ 2014-04-28 22:46 aoun 阅读(113) 评论(0) 推荐(0)

MFC

摘要：Microsoft Foundation Class 阅读全文

posted @ 2014-04-27 23:09 aoun 阅读(81) 评论(0) 推荐(0)

she

摘要：8.18 lion B 阅读全文

posted @ 2014-04-27 00:52 aoun 阅读(90) 评论(0) 推荐(0)

RTTI

摘要：Run-Time Type Identification作用：在运行时获取指针所指到或参考到的对象型态。说明：某些编译器默认禁止RTTI，目的是消除性能上的开销。面向对象更提倡使用虚函数而不是RTTI机制。C++通过typeid, dynamic_cast, type_info来支持RT... 阅读全文

posted @ 2014-04-25 23:14 aoun 阅读(337) 评论(2) 推荐(0)

better me

摘要：If I want to love her, I should more excellent first.Everyday may not a good day, but there's something good everyday 阅读全文

posted @ 2014-04-20 00:32 aoun 阅读(143) 评论(0) 推荐(0)

three-times handshake

摘要：syn->(ack, syn)->ack 阅读全文

posted @ 2014-04-19 00:17 aoun 阅读(134) 评论(0) 推荐(0)

LinkQueue class

摘要：1 #include 2 3 struct Node{ 4 Node * next; 5 6 Node() { next = NULL;} 7 Node(const Node & node) { 8 next = node.next; ... 阅读全文

posted @ 2014-04-19 00:15 aoun 阅读(327) 评论(0) 推荐(0)

LinkStack class

摘要：1 #include 2 3 struct Node { 4 Node * next; 5 6 Node() { next = NULL;} 7 Node(const Node & node) { 8 next = node.next;... 阅读全文

posted @ 2014-04-18 14:02 aoun 阅读(312) 评论(0) 推荐(0)

Queue class

摘要：1 enum Error_code { 2 succeed, 3 overflow, 4 underflow 5 }; 6 7 typedef int Queue_entry; // Now queue element is int 8 9 const int max_... 阅读全文

posted @ 2014-04-18 12:31 aoun 阅读(196) 评论(0) 推荐(0)

Stack class

摘要：const int max_stack = 10;typedef int Stack_entry; // Now, stack data type is intenum Error_code { succeed, overflow, underflow};class Stack{p... 阅读全文

posted @ 2014-04-18 11:05 aoun 阅读(361) 评论(4) 推荐(0)

pointer

摘要：Item x[20];Item * ptr = x;ptr = &(x[0]);ptr = &(x[i]);ptr = x + i; 阅读全文

posted @ 2014-04-18 10:28 aoun 阅读(191) 评论(0) 推荐(0)

code for template

摘要：// A example for template// From > P273#include #include #include using namespace std;// class Appleclass Apple {public: Apple() : variety("generic... 阅读全文

posted @ 2014-04-17 16:48 aoun 阅读(150) 评论(0) 推荐(0)

language type

摘要：Static type language: c++, Object Pascal ...Dynamic type language: Smalltalk, Objective-C ...Static type language prefer to behave object by class, ... 阅读全文

posted @ 2014-04-16 15:30 aoun 阅读(230) 评论(0) 推荐(0)

coding style

摘要：A class should have follow 4 functions:1. default constructor2.copy contructor3.operator =4.destructor 阅读全文

posted @ 2014-04-16 14:52 aoun 阅读(111) 评论(0) 推荐(0)

Pigeonhole principle

摘要：For example: 10 apples, 9 boxes, then at least one box have two apples.Hash table's repeat problem is inevitable, because the number of Keys is alway... 阅读全文

posted @ 2014-04-14 23:57 aoun 阅读(230) 评论(0) 推荐(0)

MD5

摘要：Message-digest Algorithm 5 阅读全文

posted @ 2014-04-14 23:40 aoun 阅读(98) 评论(0) 推荐(0)

Irreversible algorithm

摘要：Encryption process does not request the use of a encryption key, because the key is input plaintext itself. 阅读全文

posted @ 2014-04-14 23:21 aoun 阅读(228) 评论(0) 推荐(0)

RFC

摘要：Request for commentsIs a series numbers scheduled file, documents collected Internet-related information, and software files for UNIX and Internet com... 阅读全文

posted @ 2014-04-14 23:15 aoun 阅读(108) 评论(0) 推荐(0)

feof

摘要：feof's definition in stdio.h:#define _IOEOF 0x0010#define feof(_stream) ((_stream)->_flag & _IOEOF)From here we know only _flag equal to _IOEOF then feof() return 1. When file position indicator arrive to end of file, and read/write again, the fp->_flag set to _IOEOF, then call feof() 阅读全文

posted @ 2014-04-10 23:15 aoun 阅读(260) 评论(0) 推荐(0)

Template class

摘要：Template class's decalaration and implementation should place in the header file together.If separate them, then the complier will report "unresolved external symbol ..."I know they can separate, but I need more skills, so come on. 阅读全文

posted @ 2014-04-02 23:20 aoun 阅读(172) 评论(0) 推荐(0)