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Is unsigned integer subtraction defined behavior?
I have come across code from someone who appears to believe there is a problem subtracting an unsigned integer from another integer of the same type when the result would be negative. So that code like this would be incorrect even if it happens to work on most architectures.
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HttpServletRequest to complete URL
I have an HttpServletRequest object.
10 Answers
10
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Is a Java hashmap search really O(1)?
...ese hashmaps are vastly different from any of the hashing algorithms I was bought up on, there must always exist a dataset that contains collisions.
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三个退出程序消息：WM_CLOSE、WM_DESTROY、WM_QUIT区别 - C/C++ - 清泛网 -...
...候，往往弹出一个消息框。
插播：消息框
int MessageBox(
HWND hWnd, // handle of owner window
LPCTSTR lpText, // address of text in message box
LPCTSTR lpCaption, // address of title of message box
UINT uType // style of message box
);
1. 当收到WM_CLOSE消息，...
Print a string as hex bytes?
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Fedor GogolevFedor Gogolev
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3...
Disable file preview in VS2012
... in solution explorer it automatically opens file in a special "preview" tab.
5 Answers
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How to change column order in a table using sql query in sql server 2005?
How to change column order in a table using SQL query in SQL Server 2005?
21 Answers
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Can we have multiple “WITH AS” in single sql - Oracle SQL
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You can do this as:
WITH abc AS( select
FROM ...)
, XYZ AS(select
From abc ....) /*This one uses "abc" multiple times*/
Select
From XYZ.... /*using abc, XYZ multiple times*/
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moving committed (but not pushed) changes to a new branch after pull
I've done a fair bit of work ("Your branch is ahead of 'origin/master' by 37 commits.") which really should have gone into its own branch rather than into master . These commits only exist on my local machine and have not been pushed to origin , but the situation is complicated somewhat in that o...
How do I return multiple values from a function? [closed]
...tuples were added in 2.6 for this purpose. Also see os.stat for a similar builtin example.
>>> import collections
>>> Point = collections.namedtuple('Point', ['x', 'y'])
>>> p = Point(1, y=2)
>>> p.x, p.y
1 2
>>> p[0], p[1]
1 2
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