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Understanding typedefs for function pointers in C
... took me a while to get around to such a definition while trying to understand a numerical algorithm written in C a while ago. So, could you share your tips and thoughts on how to write good typedefs for pointers to functions (Do's and Do not's), as to why are they useful and how to understand other...
What is the difference between 'my' and 'our' in Perl?
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Great question: How does our differ from my and what does our do?
In Summary:
Available since Perl 5, my is a way to declare non-package variables, that are:
private
new
non-global
separate from any package, so that the variable cannot be accessed in the form of ...
How to make zsh run as a login shell on Mac OS X (in iTerm)?
...n iTerm -> Preferences -> Profiles Tab -> General section set Command to: /bin/zsh --login
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How do I use boolean variables in Perl?
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@BlueWaldo: you can also use cmp and <=> when comparing and assigning the results of the comparison to a scalar. $var = $var1 cmp $var2; 'cmp' and '<=>' (used for numeric comparisons) returns -1, 0, or 1 if left argument is less than, equal to,...
How add “or” in switch statements?
...e the stated purpose is to not write duplicate code as done in your case 1 and 2.
– Gary.Ray
May 11 '09 at 15:20
Usefu...
Is there a way to detach matplotlib plots so that the computation can continue?
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@noskolo what if I have several figures, how to plot and show Fig1 while continue the background to go on? I'd like this figure being open till the next fig being generated, so at the end I have all figs open and the code is finished. With your current solution, it keeps me wai...
How do you get the length of a list in the JSF expression language?
...length attributes, they won't implement getSize() or getLength() which JSF and most other standards require, you can't do what you want.
There's a couple ways to do this.
One: add a function to your Bean that returns the length:
In class MyBean:
public int getSomelistLength() { return this.somel...
Can my enums have friendly names? [duplicate]
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You can use the System.ComponentModel.DataAnnotations and add an display attr. (like: [Display(Name = "This Name doesn't work")])
– Cas Bloem
Jan 18 '16 at 16:17
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How to replace ${} placeholders in a text file?
..., the file having variables like ${dbName} interspersed. What is the command line utility to replace these instances and dump the output to standard output?
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How to convert Milliseconds to “X mins, x seconds” in Java?
...btract the current System.currentTimeMillis() from the start variable, and I want to show them the time elapsed using a human readable format such as "XX hours, XX mins, XX seconds" or even "XX mins, XX seconds" because its not likely to take someone an hour.
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