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How to get the current directory in a C program?

I'm making a C program where I need to get the directory that the program is started from. This program is written for UNIX computers. I've been looking at opendir() and telldir() , but telldir() returns a off_t (long int) , so it really doesn't help me. ...
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How to format a string as a telephone number in C#

I have a string "1112224444' it is a telephone number. I want to format as 111-222-4444 before I store it in a file. It is on a datarecord and I would prefer to be able to do this without assigning a new variable. ...
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matplotlib colorbar for scatter

I'm working with data that has the data has 3 plotting parameters: x,y,c. How do you create a custom color value for a scatter plot? ...
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Sharing a result queue among several processes

The documentation for the multiprocessing module shows how to pass a queue to a process started with multiprocessing.Process . But how can I share a queue with asynchronous worker processes started with apply_async ? I don't need dynamic joining or anything else, just a way for the workers to (r...
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Change how fast “title” attribute's tooltip appears

Is there a way to change how fast the tooltip from an element's "title" attribute? I'd like it if the tooltip appeared immediately, but it seems to take a few seconds to apear. ...
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Correct way to use get_or_create?

I'm trying to use get_or_create for some fields in my forms, but I'm getting a 500 error when I try to do so. 5 Answers ...
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Difference between .tagName and .nodeName

What is the difference between $('this')[0].nodeName and $('this')[0].tagName ? 4 Answers ...
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PHP String to Float

I am not familiar with PHP at all and had a quick question. 8 Answers 8 ...
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Regular expression \p{L} and \p{N}

I am new to regular expressions and have been given the following regular expression: 2 Answers ...
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How is set() implemented?

I've seen people say that set objects in python have O(1) membership-checking. How are they implemented internally to allow this? What sort of data structure does it use? What other implications does that implementation have? ...