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Why does Python code use len() function instead of a length method?
...eople to implement .len(). Its the same thing, and one looks much cleaner. If the language is going to have an OOP __len__, what in the world is the point of making len(..)
– alternative
Nov 7 '11 at 21:13
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How to copy an object in Objective-C
...lways with reference types, there are two notions of "copy". I'm sure you know them, but for completeness.
A bitwise copy. In this, we just copy the memory bit for bit - this is what NSCopyObject does. Nearly always, it's not what you want. Objects have internal state, other objects, etc, and ofte...
UITableViewCell Separator disappearing in iOS7
...s not shown!
I overrode layoutSubviews in my UITableViewCell subclass and now the separators are displayed reliably:
Objective-C:
- (void)layoutSubviews {
[super layoutSubviews];
for (UIView *subview in self.contentView.superview.subviews) {
if ([NSStringFromClass(subview.class) ...
Preventing console window from closing on Visual Studio C/C++ Console application
...SOLE) in SubSystem option or you can just type Console in the text field!
Now try it...it should work
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How to check that an element is in a std::set?
...
this is specific for sets and maps. vectors, lists etc. don't have a find member function.
– wilhelmtell
Nov 9 '09 at 13:53
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Windows下如何判断Win32 or x64？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...不。在 Windows SDK 的 minwindef.h 下第 37 行有如下定义：
#ifndef WIN32
#define WIN32
#endif
即是说，只要包含了 Windows.h，那么 WIN32 常量是肯定定义了的，所以不能用于判断平台环境。但是如果在预处理定义里删掉 WIN32，又不包含 Wi...
Cocoa Core Data efficient way to count entities
...ke a count over an Entity-Type (like SQL can do with SELECT count(1) ...). Now I just solved this task with selecting all with NSFetchedResultsController and getting the count of the NSArray ! I am sure this is not the best way...
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Among $_REQUEST, $_GET and $_POST which one is the fastest?
... depends on variables_order ; and not sure you want to work with cookies.
If I had to choose, I would probably not use $_REQUEST, and I would choose $_GET or $_POST -- depending on what my application should do (i.e. one or the other, but not both) : generally speaking :
You should use $_GET when...
Windows 7, 64 bit, DLL problems
...risP said, the problem was in my project dependencies. The key is "How to know your project dependencies in Qt 5?".
As I didn't find any clear way to know it (Dependency Walker didn't help me a lot...), I followed next the "inverse procedure" that takes no more than 5 minutes and avoid a lot of he...
How to add a custom loglevel to Python's logging facility
...ebug level to be printed -- regardless of what the log level is set to. So if you make a new level number of 9, if you call setLevel(50), the lower level messages will erroneously be printed.
To prevent that from happening, you need another line inside the "debugv" function to check if the logg...