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Difference between an API and SDK
I am trying to explain to a non-developer the difference between an API an SDK. I need to explain why a commercial fingerprint software vendor will likely not provide an SDK, although they may certainly have used one.
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Check if SQL Connection is Open or Closed
How do you check if it is open or closed I was using
9 Answers
9
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What characters are valid for JavaScript variable names?
Which characters can be used for naming a JavaScript variable?
12 Answers
12
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Is there an MD5 Fixed Point where md5(x) == x?
Is there a fixed point in the MD5 transformation, i.e. does there exist x such that md5(x) == x ?
7 Answers
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What's the most efficient way to erase duplicates and sort a vector?
...odd Gardner; a std::set might be a good idea here. Even if you're stuck using vectors, if you have enough duplicates, you might be better off creating a set to do the dirty work.
Let's compare three approaches:
Just using vector, sort + unique
sort( vec.begin(), vec.end() );
vec.erase( unique( v...
Is there any particular difference between intval and casting to int - `(int) X`?
Is there any particular difference between intval and (int)?
7 Answers
7
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How to cancel a local git commit
My issue is I have changed a file eg: README, added a new line ' this for my testing line ' and saved the file, then I issued the following commands
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Rails: Using build with a has_one association in rails
In this example, I create a user with no profile , then later on create a profile for that user. I tried using build with a has_one association but that blew up. The only way I see this working is using has_many . The user is supposed to only have at most one profile .
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Unstage a deleted file in git
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Assuming you're wanting to undo the effects of git rm <file> or rm <file> followed by git add -A or something similar:
# this restores the file status in the index
git reset -- <file>
# then check out a copy fro...
Fastest way to determine if record exists
As the title suggests... I'm trying to figure out the fastest way with the least overhead to determine if a record exists in a table or not.
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