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What is the difference between 'my' and 'our' in Perl?
...
Great question: How does our differ from my and what does our do?
In Summary:
Available since Perl 5, my is a way to declare non-package variables, that are:
private
new
non-global
separate from any package, so that the variable cannot be accessed in the form of ...
iOS: how to perform a HTTP POST request?
I'm approaching iOS development and I'd like to have one of my first applications to perform a HTTP POST request.
7 Answers...
scoped_ptr 与 auto_ptr 与 shared_ptr 区别总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
}
~Foo()
{
std::cout<<"destroy Foo()"<<std::endl;
}
void print()
{
std::cout<<"Foo::print"<<std::endl;
}
int i;
};
void OutSharePtr(shared_ptr<Foo> &P)
{
Foo* p = new Foo();
shared_ptr<Foo> sp1(p);
std::cout<<sp1.use_count()<<"::"<<sp1.get()<<std::endl;
shared...
boost自定义composite_key_compare比较函数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...Index { };
struct TParamValidIndex { };
struct customize_compare
{
int operator()(const IDType l, const IDType r)const
{
// specially compare for this application
return strcmp(l, r);
}
};
typedef multi_index_container<
TParam_p,
indexed_by<
ordered_unique< tag<T...
解决：Run-Time Check Failure #0，The value of ESP was not properly sav...
... calling a function declared with one calling convention with a function pointer declared with a different calling convention.
错误原因：
你定义函数指针原型时出错。
其实你定义的没有错，但是编译器不认识而已，因为你调用的dll函数是一个远函数，而...
LVN_ITEMCHANGED通知会响应多次的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
... pNMListView->uChanged && (pNMListView->uNewState & LVIS_SELECTED))
{
int nItem = pNMListView->iItem;
if(-1 != nItem)
{
int nSubItem = pNMListView->iSubItem;
CString str;
static int i = 0;
str.Format(_T("Index: %d, item: %d, subitem: %d"), i++, nItem, nSubItem);
GetPar...
mfc从CImageList中获取CBitmap位图对象 - C/C++ - 清泛网 - 专注C/C++及内核技术
...map位图对象
void GetListImage(CImageList &ImageList, CBitmap &Bitmap, int nImageIdx)
{
CClientDC dcClient(NULL);
IMAGEINFO ImageInfo;
ImageList.GetImageInfo(nImageIdx, &ImageInfo);
int nWidth = abs(ImageInfo.rcImage.right - ImageInfo.rcImage.left);
int nHeight = abs(Ima...
deque iterator not dereferencable 问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...比如：
#include<iostream>
#include <queue>
using namespace std;
int main()
{
queue<int> x;
for(int i = 0;i < 10;i++)
{
x.push(i+1);
}
while(!x.empty()) {
cout << x.front() << " ";
x.pop();
x.push(x.front());
...
C++虚析构函数解析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...mething() { cout << "Do something in class ClxDerived!" << endl; };
};
int main(){
ClxDerived *p = new ClxDerived;
p->DoSomething();
delete p;
return 0;
}
运行结果：
Do something in class ClxDerived!
Output from the destructor of class ClxDerived!
...
[完整实例源码]C&C++修改文件只读属性 - C/C++ - 清泛网 - 专注C/C++及内核技术
...后SetFileAttributes修改文件属性。代码如下：#include "stdafx.h"int _...先使用GetFileAttributes获取文件属性，判断该文件是否是只读，然后SetFileAttributes修改文件属性。
代码如下：
#include "stdafx.h"
int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]...