el_vr的专栏

http://hi.baidu.com/timegoneby/item/18faad28a0cafc85af48f59d

#include using namespace std;class A {public: A(string name):name_(name) {}private: friend class B; void Print() { cout << "A" << endl; } string name_;};class B {public: B(A* a): a_(

void test1() { vector va; int a[] = {1,3,5,3,6,4,7,4,9}; for (int i = 0; i < sizeof(a)/sizeof(int); i++) { va.push_back(a[i]); } cout << va.size() << endl; make_heap(va.begin(), va.en

void test_memcpy() { uint32 a = 1235439534; char buf[1024]; memset(buf, 0 , sizeof(buf)); memcpy(buf, &a, sizeof(a)); cout << buf << endl; uint32 b = 0; memcpy(&b, buf, sizeof(b)); cou

void PrintVectorAddr(vector& v) {  for (size_t i = 0; i     cout   }  cout }void test() {  vector v;  int a = 1;  v.push_back(a);  PrintVectorAddr(v);  int b = 2;  v.push_b

4．   容易出现的问题4.1 在memwatch.h之后包含string.h时，编译时提示strdup()出错！    解决办法：可以将string.h放置在memwatch.h之前；也可以修改memwatch.h，使其包含string.h.

http://blog.youkuaiyun.com/weiwenhp/article/details/8708281

http://blog.youkuaiyun.com/weiwenhp/article/details/8706864

http://blog.chinaunix.net/uid-25808509-id-354211.html拷贝构造函数和赋值构造函数的异同由于并非所有的对象都会使用拷贝构造函数和赋值函数，程序员可能对这两个函数有些轻视。请先记住以下的警告，在阅读正文时就会多心：如果不主动编写拷贝构造函数和赋值函数，编译器将以“位拷贝”的方式自动生成缺省的函数。倘若类中含有指针变量，那么这两个缺

#include using namespace std;template size_t find_lower_bound(size_t i, size_t j, T* data, const T& key, bool (*les)(const T&, const T&)) { if (les(key, data[i])) { return i; } while (i

内部类可以访问外部类的private方法。#include #include using namespace std;template class MyList {  public:    MyList(vector* list): v_(list) {    }     class Iterator {      public: 

http://blog.youkuaiyun.com/songjinshi/article/details/6785267

http://blog.youkuaiyun.com/shenchen8274/article/details/7285687

可能是.h文件里包含了对变量的定义（初始化）导致。应该把变量定义（初始化）放于.cpp文件。

http://bbs.youkuaiyun.com/topics/390692287?page=1class A { private: int a_; public: A():a_(0) { cout << "create A(" << a_ <<")" << endl;} A(int a):a_(a) { cout << "create A(" << a_<< ")" << en

# 1 "ev.c"# 1 ""# 1 ""# 1 "ev.c"# 45 "ev.c"# 1 "config.h" 1# 46 "ev.c" 2# 167 "ev.c"# 1 "/usr/include/stdlib.h" 1 3 4# 25 "/usr/include/stdlib.h" 3 4# 1 "/usr/include/features.h" 1 3 4# 361

void test_cast() {  int* pa = reinterpret_cast(1);  cout   pa++;  cout   cout (pa) }

g++ -E ev.h

有两种实现方式，将迭代器定义在内部（STL方式）：http://blog.youkuaiyun.com/lonelywinter340/article/details/3327700将迭代器定义在外部：http://blog.youkuaiyun.com/lcl_data/article/details/9310313殊途同归，都是在调用begin(

http://blog.chinaunix.net/uid-630435-id-88932.html      std::list List;      std::list::iterator itList;      for( itList = List.begin(); itList != List.end(); )      {            if( Wi