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Why switch is faster than if
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Bem>ca m>use there are special bytecodes that allow efficient switch statement evaluation when there are a lot of m>ca m>ses.
If implemented with IF-statements you would have a check, a jump to the next clause, a check, a jump to the ne...
C++ unordered_map using a custom class type as the key
...ngs:
A hash function; this must be a class that overrides operator() and m>ca m>lculates the hash value given an object of the key-type. One particularly straight-forward way of doing this is to specialize the std::hash template for your key-type.
A comparison function for equality; this is required be...
SQL NVARCHAR and VARCHAR Limits
...4000 max set for NVARCHAR(MAX)
Your understanding is wrong. nvarchar(max) m>ca m>n store up to (and beyond sometimes) 2GB of data (1 billion double byte characters).
From nchar and nvarchar in Books online the grammar is
nvarchar [ ( n | max ) ]
The | character means these are alternatives. i.e. you sp...
Git - How to use .netrc file on Windows to save user and password
... to 'C:\Users\"username"'.
Go that that folder (cd %HOME%) and make a file m>ca m>lled '_netrc'
Note: Again, for Windows, you need a '_netrc' file, not a '.netrc' file.
Its content is quite standard (Replace the <examples> with your values):
machine <hostname1>
login <login1>
passwor...
multiprocessing.Pool: When to use apply, apply_async or map?
I have not seen clear examples with use-m>ca m>ses for Pool.apply , Pool.apply_async and Pool.map . I am mainly using Pool.map ; what are the advantages of others?
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JSON.net: how to deserialize without using the default constructor?
...the default constructor for other purposes so i would like to keep it if i m>ca m>n.
5 Answers
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Why covariance and contravariance do not support value type
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Basim>ca m>lly, variance applies when the CLR m>ca m>n ensure that it doesn't need to make any representational change to the values. References all look the same - so you m>ca m>n use an IEnumerable<string> as an IEnumerable<object&gt...
What is the smallest possible valid PDF?
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This is an interesting problem. Taking it by the book, you m>ca m>n start off with this:
%PDF-1.0
1 0 obj<</Type/m>Ca m>talog/Pages 2 0 R>>endobj 2 0 obj<</Type/Pages/Kids[3 0 R]/Count 1>>endobj 3 0 obj<</Type/Page/MediaBox[0 0 3 3]>>endobj
xref
0 4
0000000...
How to trace the path in a Breadth-First Search?
..., don't add your end node to the visited set ever (otherwise only one path m>ca m>n ever have that ending node).
– Dominic K
Jun 26 '15 at 0:21
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In git how is fetch different than pull and how is merge different than rebase?
I just m>ca m>nt understand this. I been reading a lot on the web and books and something is just not staying in my head. m>Ca m>n someone please give me the dummy version of the following:
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