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Macro vs Function in C
...le with control-flow constructs:
#define swap(x, y) t = x; x = y; y = t;
if (x < y) swap(x, y); -->
if (x < y) t = x; x = y; y = t; --> if (x < y) { t = x; } x = y; y = t;
The usual strategy for fixing this is to put the statements inside a "do { ... } while (0)" loop.
If you hav...
AfxGetMainWnd函数解惑 - C/C++ - 清泛网 - 专注C/C++及内核技术
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{
CMainFrame* pMainWnd = (CMainFrame*)AfxGetMainWnd();
if (NULL!=pMainWnd)
{
CView *pView = pMainWnd->GetActiveView();
if (NULL!=pView)
{
CDC *pDC = pView->GetDC();
ASSERT(NULL!=pDC);
pDC-...
Animate text change in UILabel
...t the license stuff. What prevents people from using it in commercial apps now?
– Esqarrouth
Jun 5 '15 at 5:44
2
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How to add a progress bar to a shell script?
... (100%)\r'
echo -ne '\n'
In a comment below, puk mentions this "fails" if you start with a long line and then want to write a short line: In this case, you'll need to overwrite the length of the long line (e.g., with spaces).
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PHP Pass variable to next page
...the previous page, is completely unconnected with the current page. Except if you use something like sessions, cookies or GET / POST variables. Sessions and cookies are quite easy to use, with session being by far more secure than cookies. More secure, but not completely secure.
Session:
//On page...
Error: Could not find or load main class in intelliJ IDE
...and then followed the steps mentioned by @Kishore over here. It is working now.
– Sunny Shekhar
Nov 26 '19 at 5:14
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show 2 more comments
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List all base classes in a hierarchy of given class?
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If your class inherits from a class that inherits from a class, only the first part of the chain will be in its __bases__
– Boris
Nov 25 '19 at 22:56
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What is the difference between a field and a property?
In C#, what makes a field different from a property, and when should a field be used instead of a property?
32 Answers
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Use logging print the output of pprint
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If you don't remove this code after you're done debugging, you should probably guard it with "if Logger.isEnabledFor(logging.DEBUG):" to avoid running pformat when you won't use its output: docs.python.org/2/library/…
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中文网（自研/维护）拓展 · App Inventor 2 中文网
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NotificationStyle
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PhoneInfo
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SQLite
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