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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...
c++ Timer使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...R_ID); //取消定时器
//.h文件函数申明
afx_msg void OnTimer(UINT_PTR nIDEvent);
//.cpp函数定义
void CxxDlg::OnTimer(UINT_PTR nIDEvent)
{
switch (nIDEvent)
{
case TIMER_ID:
{
//do something
}
break;
default:
break;
}
}
//定义消...
CDC:DrawText 多行显示文本(文本自动换行) - C/C++ - 清泛网 - 专注C/C++及内核技术
...T_LEFT | DT_TOP |DT_WORDBREAK | DT_EDITCONTROL, m_pfSongTi);函数原型:int DrawTe...//长文本自动换行
dc.DrawText(str, &rect, DT_LEFT | DT_TOP | DT_WORDBREAK | DT_EDITCONTROL, m_pfSongTi);
函数原型:
int DrawText(
HDC hDC, // handle to DC
LPCTSTR lpString, //...
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[]...
error C2220: 警告被视为错误 - 没有生成“object”文件 - C/C++ - 清泛网 ...
...就可以!),不过还是要分析具体原因的。
一般地,是 int 类型与 size_t 类型比较或赋值导致的,如:
vector<Foo> fooVec;
int index = 0;
..
for (index = 0; index < fooVec.size(); ++index)
{...}
将index的类型改成 size_t 或 size_t强转int 就...