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Android: View.setID(int id) programmatically - how to avoid ID conflicts?
... The identifier should be a positive number.
So you can use any positive integer you like, but in this case there can be some views with equivalent id's. If you want to search for some view in hierarchy calling to setTag with some key objects may be handy.
...
What is the difference between localStorage, sessionStorage, session and cookies?
...ocalStorage only allow you to store strings - it is possible to implicitly convert primitive values when setting (these will need to be converted back to use them as their type after reading) but not Objects or Arrays (it is possible to JSON serialise them to store them using the APIs). Session stor...
Performance optimization strategies of last resort [closed]
...tors of floats. Changing the code to carry around the extra empty slot and converting the calculation to floating point from fixed point allowed for a slightly less-accurate but much faster result.
– RBerteig
May 30 '09 at 2:19
...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...2-1800 gcc-4.7.2 0.740s 0.832s -O2
Intel Xeon E5405 gcc-4.8.1 0.603s 0.804s -O2
Intel Xeon E5-2603 gcc-4.4.7 1.121s 1.122s -
Intel Core i3-3217U gcc-4.6.4 0.709s 0....
appending array to FormData and send via AJAX
...
You have several options:
Convert it to a JSON string, then parse it in PHP (recommended)
JS
var json_arr = JSON.stringify(arr);
PHP
$arr = json_decode($_POST['arr']);
Or use @Curios's method
Sending an array via FormData.
Not recommended: Seriali...
Set Additional Data to highcharts series
... }
ChartDataModel lst = new ChartDataModel();
lst.Value = Convert.ToDateTime(dr[3]).ToShortDateString();
lst.Item = Convert.ToDouble(dr[2]);
lst.method = dr[4].ToString();
((List<ChartDataModel>)aSeries["data"]).Add(lst);
}
dataResult.Add(aSerie...
CListCtrl 如何设置单元格颜色？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...ColListCtrl.InitCtrl(&Head, &Cols);
//添加数据
CString Linetitle;
int pos=0;
for (int x=0; x<10;x++)
{
Head.RemoveAll();
Linetitle.Format("Line %d",x);
Head.Add(Linetitle);
Linetitle.Format("SubLine %d-1",x);
Head.Add(Linetitle);
Linetitle.Format("SubLine %d-2",x);
Head.Add(...
CListCtrl 行高设置，自定义行高 - C/C++ - 清泛网 - 专注C/C++及内核技术
...tem(LPMEASUREITEMSTRUCT lpMeasureItemStruct);
virtual void OnMeasureItem(int nIDCtl, LPMEASUREITEMSTRUCT lpMeasureItemStruct);
virtual void DrawItem(LPDRAWITEMSTRUCT lpMeasureItemStruct);
public:
void SetRowHeigt(int nHeight);
private:
int m_nRowHeight;
};
MyListCtrl.cpp：
#inc...
c/c++ volatile和mutable关键字 - C/C++ - 清泛网 - 专注C/C++及内核技术
...olatile 吗？解释为什么。
3); 下面的函数有什么错误：
int square(volatile int *ptr)
{
return *ptr * *ptr;
}
下面是答案：
1)是的。一个例子是只读的状态寄存器。它是volatile因为它可能被意想不到地改变。它是const因为程序不应该...
shared_ptr指针被赋值后，原指针会引用清零、自动释放。 - C/C++ - 清泛IT...
...赋值后，原指针会引用清零、自动释放。
std::shared_ptr<int> intg;
void foo(std::shared_ptr<int> p)
{
intg = p; // 原指针释放，存储新的智能指针
//*(intg.get()) = *(p.get...