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What does the brk() system call do?
...rge (say, >128K) allocations. See, for instance, the discussion of MMAP_THRESHOLD in the Linux malloc(3) manpage.
– zwol
Aug 9 '11 at 15:26
1
...
How do I view the list of functions a Linux shared library is exporting?
...AL DEFAULT UND
1: 00000000 0 FUNC GLOBAL DEFAULT UND pthread_mutex_unlock@GLIBC_2.0 (4)
2: 00000000 0 FUNC GLOBAL DEFAULT UND pthread_mutex_destroy@GLIBC_2.0 (4)
3: 00000000 0 NOTYPE WEAK DEFAULT UND _ITM_deregisterTMCloneTable
4: 00000000 0 FUNC ...
Repeat a task with a time delay?
...er());
private Runnable mStatusChecker;
private int UPDATE_INTERVAL = 2000;
/**
* Creates an UIUpdater object, that can be used to
* perform UIUpdates on a specified time interval.
*
* @param uiUpdater A runnable containing the update ro...
UICollectionView current visible cell index
...ndexPath);
}
}
Update to Swift 5:
func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
for cell in yourCollectionView.visibleCells {
let indexPath = yourCollectionView.indexPath(for: cell)
print(indexPath)
}
}
...
How do you manage databases in development, test, and production?
...
Name your databases as follows - dev_<<db>> , tst_<<db>> , stg_<<db>> , prd_<<db>> (Obviously you never should hardcode db names
Thus you would be able to deploy even the different type of db's on same physical ...
Difference between Ctrl+Shift+F and Ctrl+I in Eclipse
...s are at the beginning. It doesn't work if you have something like int i = _____5; ( _ = empty space ). Only Ctrl + Shift + F will convert this line to int i = 5;.
– ROMANIA_engineer
Oct 26 '14 at 7:54
...
C# Sortable collection which allows duplicate keys
...Format("{0}:{1}", tuple.Item1,tuple.Item2));
}
int expected_first = 1;
int expected_last = 3;
int first = list.First().Item1; //requires using System.Linq
int last = list.Last().Item1; //requires using System.Linq
Assert.AreEqual(expected_first, fi...
system(“pause”); - Why is it wrong?
...utable named "pause"!)
Simply write your own "Pause()" function that uses _getch. OK, sure, _getch is platform dependent as well (note: it's defined in "conio.h") - but it's much nicer than system() if you are developing on Windows and it has the same effect (though it is your responsibility to pro...
Windows x64编程中寄存器的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
... DWORD dwReadSize;
hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
... ...
}
CreateFile() 的参数有 7 个，那么看看 VC 是怎样安排参数传递：
void EditTextFile(HWND hEdit, LPCTSTR szF...
Two submit buttons in one form
...l be sent through as any other input.
<input type="submit" name="button_1" value="Click me">
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