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Should I use 'has_key()' or 'in' on Python dicts?
...() must construct and destroy a temporary object, complete with the memory allocation that entails, where x in d.keys() is just doing an arithmetic operation (computing the hash) and doing a lookup. Note that d.keys() is only about 10 times as long as this, which is still not long really. I haven't ...
Remove non-utf8 characters from string
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what to use instead $regex = <<<'END' for PHP < 5.3.x ?
– serhio
Apr 8 '10 at 23:00
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How to compare two NSDates: Which is more recent?
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NSDate *retVal;
NSDateComponents *components = [[NSDateComponents alloc] init];
[components setDay:days];
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
retVal = [gregorian dateByAddingComponents:components toDate:self options:0];
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How can I check if the current date/time is past a set date/time?
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Since PHP >= 5.2.2 you can use the DateTime class as such:
if (new DateTime() > new DateTime("2010-05-15 16:00:00")) {
# current time is greater than 2010-05-15 16:00:00
# in other words, 2010-05-15 16:00:00 has pass...
Variable declaration in a C# switch statement [duplicate]
...e case, however, to create a smaller scope. As for whether they're created/allocated - the stack frame has enough space for all the local variables in a method (leaving aside the complexities of captured variables). It's not like that space is allocated during the method's execution.
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Rails: Is there a rails trick to adding commas to large numbers?
... either , or . for decimal digits, even if you specify it as argument). It allocates thousands of objects (so its performance patterns are complex and hard to profile). Consider just using regexps if you don't need to support different ways to format numbers depending on locale.
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Clear file cache to repeat performance testing
...hnique (other than rebooting) that seems to work:
Run a few copies of MemAlloc
With each one, allocate large chunks of memory a few times
Use Process Explorer to observe the System Cache size reducing to very low levels
Quit the MemAlloc programs
It isn't selective though. Ideally I'd like to be...
How do I make a UITableViewCell appear disabled?
...:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
// Configure the cell...
if(indexPath.row==0)
{
cell.userInteractionEnabled=FALSE;
UIImageVi...
MFC CListCtrl使用方法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...生类
http://www.codeguru.com/cpp/controls/listview/introduction/article.php/c919/
20. listctrl的subitem添加图标
m_list.SetExtendedStyle(LVS_EX_SUBITEMIMAGES);
m_list.SetItem(..); //具体参数请参考msdn
21. 在CListCtrl显示文件，并根据文件类型来显...
Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath:
...ier:CellIdentifier];
if (cell==nil) {
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
solved
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