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Coding Practices which enable the compiler/optimizer to make a faster program
Many years ago, C compilers were not particularly smart. As a workaround K&R invented the register keyword, to hint to the compiler, that maybe it would be a good idea to keep this variable in an internal register. They also made the tertiary operator to help generate better code.
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Using TortoiseSVN how do I merge changes from the trunk to a branch and vice versa?
... and did a "Test Merge". It was what I needed: the range was automatically set for me (from when the branch was done to the last revision in the branch)
– Lian
Aug 7 '13 at 18:51
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How does deriving work in Haskell?
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python numpy ValueError: operands could not be broadcast together with shapes
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Python: How to get stdout after running os.system? [duplicate]
...ut(batcmd, shell=True)
Because you were using os.system(), you'd have to set shell=True to get the same behaviour. You do want to heed the security concerns about passing untrusted arguments to your shell.
If you need to capture stderr as well, simply add stderr=subprocess.STDOUT to the call:
re...
Waiting until two async blocks are executed before starting another block
... Do you notice that the time is not equal to the sleep time set in your block? why it would be like this?
– Damon Yuan
Aug 2 '15 at 12:56
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Java multiline string
Coming from Perl, I sure am missing the "here-document" means of creating a multi-line string in source code:
42 Answers
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What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
...t collation. The only single byte characters are the typical western ASCII set.
Because of this it is possible for an insert from a nvarchar(X) column to a varchar(X) column to fail with a truncation error (where X denotes a number that is the same in both instances).
SQL Server 2012 adds SC (Supp...
Find kth smallest element in a binary search tree in Optimum way
I need to find the kth smallest element in the binary search tree without using any static/global variable. How to achieve it efficiently?
The solution that I have in my mind is doing the operation in O(n), the worst case since I am planning to do an inorder traversal of the entire tree. But deep do...
How can foreign key constraints be temporarily disabled using T-SQL?
... you are trying to disable primary key for insert, I would recomend using (SET IDENTITY_INSERT) if you want just check for primary key, you can try sys.key_constraints with sys.indexes.is_primary_key
– Diego Mendes
Jan 20 '17 at 10:46
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