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How do you allow spaces to be entered using scanf?
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People (and especially beginners) should never use scanf("%s") or gets() or any other functions that do not have buffer overflow protection, unless you know for certain that the input will always be of a specific format (and ...
Random record in ActiveRecord
...tting a random record from a table via ActiveRecord. I've followed the example from Jamis Buck from 2006 .
25 Answers
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Is there a way to change the environment variables of another process in Unix?
On Unix, is there any way that one process can change another's environment variables (assuming they're all being run by the same user)? A general solution would be best, but if not, what about the specific case where one is a child of the other?
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What does a type followed by _t (underscore-t) represent?
This seems like a simple question, but I can't find it with the Stack Overflow search or Google. What does a type followed by a _t mean? Such as
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How to get rid of `deprecated conversion from string constant to ‘char*’` warnings in GCC?
So I'm working on an exceedingly large codebase, and recently upgraded to gcc 4.3, which now triggers this warning:
24 Answ...
Link to “pin it” on pinterest without generating a button
I have a page with tens or hundreds of posts, each one with social buttons.
I just can't generate all the buttons for each url: it is too slow (facebook, g+, twitter, pinterest... for hundreds of links). So, instead of the facebook share button to be generated on the fly, I use a simple img pointing...
Setting HttpContext.Current.Session in a unit test
I have a web service I am trying to unit test. In the service it pulls several values from the HttpContext like so:
14 A...
How to join int[] to a character separated string in .NET?
...nts.Select(x => x.ToString()).ToArray());
Console.WriteLine(result); // prints "1,2,3,4,5"
EDIT: As of (at least) .NET 4.5,
var result = string.Join(",", ints.Select(x => x.ToString()).ToArray());
is equivalent to:
var result = string.Join(",", ints);
EDIT:
I see several solutions ad...
How to encode a URL in Swift [duplicate]
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Swift 4.2
var urlString = originalString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
Swift 3.0
var address = "American Tourister, Abids Road, Bogulkunta, Hyderabad, Andhra Pradesh, India"
let escapedAddress = address.addingPercentEncoding(withAllowed...
How do you test that a Python function throws an exception?
...does one write a unittest that fails only if a function doesn't throw an expected exception?
13 Answers
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