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Pros and cons of AppSettings vs applicationSettings (.NET app.config / Web.config)
...simpler. If you only need a couple of literal values (bools, ints, string, etc) then this approach gives the most bang for the buck. If you need structured data, namespace separation, XSD supported validation/completion, etc, then a custom section might be a better fit. Another option is to ignore t...
What are the big improvements between guava and apache equivalent libraries?
We currently use apache collections, string utils, etc. I need to decide if we should switch from the apache foundations implementation.
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Shortest distance between a point and a line segment
...ass vec2 {float x,y;}, essentially, with operators to add, subract, scale, etc, and a distance and dot product function (i.e. x1 x2 + y1 y2).
float minimum_distance(vec2 v, vec2 w, vec2 p) {
// Return minimum distance between line segment vw and point p
const float l2 = length_squared(v, w); /...
Protecting executable from reverse engineering?
... how code works. Finding creative ways to break disassemblers, debuggers, etc is both likely to be more effective and also more intellectually satisfying than just generating reams of horrible spaghetti code. This does nothing to block a determined attacker, but it does increase the likelihood tha...
Python - Create a list with initial capacity
...to 300x slower than other languages due to Python features like decorators etc (https://wiki.python.org/moin/PythonSpeed/PerformanceTips#Data_Aggregation#Data_Aggregation).
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What's wrong with nullable columns in composite primary keys?
... comparisons. This can be a source of subtle bugs when sorting, comparing, etc.
Postgres assumes you're an adult and can make this decision for yourself. Oracle and DB2 assume you didn't realize you were doing something silly and throw an error. This is usually the right thing, but not always -- yo...
source of historical stock data [closed]
... as two different symbols, or stock splits are not properly accounted for, etc. And then you realize that historical dividend data is need as well and so you start running in circles, patching data together from 100 different data sources and so on. So to start with a "discount" data feed will do, b...
In Functional Programming, what is a functor?
...bananas, and we map the same function, we now would have a tree of apples. Etc. tree and list are two Functors here.
– Qqwy
Jun 19 '16 at 21:34
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How to securely store access token and secret in Android?
I am going to use oAuth to fetch mails and contacts from google. I don't want to ask the user each time to log in to obtain an access token and secret. From what I understood, I need to store them with my application either in a database or SharedPreferences . But I am a bit worried about security ...
Is there a difference between copy initialization and direct initialization?
...ed temporary. Any members of c1 that have pod-type (or members of members, etc., etc.) may not be initialized if the user supplied default constructors (if any) do not explicitly initialize them. For c2, it depends on whether there is a user supplied copy constructor and whether that appropriately i...