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Difference between size_t and std::size_t
...are also defined in the same header.
Wikipedia has very good info about range and storage size of size_t:
Range and storage size of size_t
The actual type of size_t is
platform-dependent; a common mistake
is to assume size_t is the same as
unsigned int, which can lead to
programm...
Way to get number of digits in an int?
...
The fastest approach: divide and conquer.
Assuming your range is 0 to MAX_INT, then you have 1 to 10 digits. You can approach this interval using divide and conquer, with up to 4 comparisons per each input. First, you divide [1..10] into [1..5] and [6..10] with one comparison, and...
Does “untyped” also mean “dynamically typed” in the academic CS world?
...ipt variables are untyped, JavaScript values have types, and variables can range over any value type at runtime (i.e. 'dynamically').
In JavaScript and many other languages, values and not variables carry types. All variables can range over all types of values and may be considered "dynamically typ...
Beyond Stack Sampling: C++ Profilers
... visualization has pointed out the offending function(s), jump back to the raw profile data to get better hints on what the real cause is.
The gprof2dot tool generates a dot graph description that you then feed into a graphviz tool. The output is basically a callgraph with functions color coded by ...
How to unit test an object with database queries
...aware database layer on top of that. This is the layer that holds all the raw SQL queries and other information. The rest of the application interacts with this higher-level database. I've found this to work pretty well for unit testing; I test my application pages in how they interact with the a...
What's the advantage of Logic-less template (such as mustache)?
...o in the model, it goes in the view, where it belongs. The view takes the raw model data, and massages as necessary (by annotating odd/even rows, etc.) to prepare it for presentation.
– acjay
Nov 30 '12 at 22:25
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Should I URL-encode POST data?
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curl will encode the data for you, just drop your raw field data into the fields array and tell it to "go".
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How to use the 'sweep' function
...f_T=sweep(sweep(df,2,df_means,"-"),2,df_sds,"/")*10+50
This code convert raw scores to T scores (with mean=50 and sd=10):
> df
[,1] [,2] [,3] [,4] [,5]
[1,] 109 8 89 69 15
[2,] 85 13 25 150 26
[3,] 30 79 48 1 125
[4,] 56 74 23 140 100
[5,] 136 110 1...
When should I use mmap for file access?
...ses in your process's address space that is large enough to fit the entire range of the file being mapped. This can become a problem if your address space becomes fragmented, where you might have 2 GB of address space free, but no individual range of it can fit a 1 GB file mapping. In this case yo...
Difference between Bridge pattern and Adapter pattern
...ions of a data store: one is efficient in space, the other is efficient in raw performance... and you have a business case for offering both in your app or framework.
In terms of your question, "where I can use which pattern," the answer is, wherever it makes sense for your project! Perhaps conside...