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How can I troubleshoot my Perl CGI script?

.... Be sure to remove this before moving to a production environment, as the extra information can be a security risk. What did the error log say? Servers keep error logs (or they should, at least). Error output from the server and from your script should show up there. Find the error log and see ...
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const vs constexpr on variables

... Are you sure? Because const int N = 10; char a[N]; works, and array bounds must be compile-time constants. – fredoverflow Nov 12 '12 at 16:22 10 ...
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Eclipse IDE: How to zoom in on text?

... This is correct, no need of extra plugin. I am puzzled why this answer isnt at the top of all answers! – anubhs Jun 29 '18 at 17:08 ...
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Cocoa Touch: How To Change UIView's Border Color And Thickness?

...?.CGColor } } } This way, your default View always has those extra editable fields in Attributes Inspector. Another advantage is that you don't have to change the class to MycustomView every time. However, one drawback to this is that you will only see your changes when you run your ap...
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How to convert CSV file to multiline JSON?

... got it to work. The code is a copy of SingleNegationElimination with the extra handling of utf-8. I tried to do it with https://docs.python.org/2.7/library/csv.html but in the end gave up. The below code worked. import csv, json csvfile = open('file.csv', 'r') jsonfile = open('file.json', 'w') ...
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Maximum size of an Array in Javascript

...3e7 takes 1300ms, which is pretty bad x=4e7 takes 11000ms and allocates an extra 2.5GB of memory So around 30 million elements is a hard upper limit, because the javascript VM falls off a cliff at 40 million elements and will probably crash the process. ...
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How does the compilation/linking process work?

...le length depending on the particular instruction involved, and because we string a variable length of them together as we build our machine code, there is a two step process involved in calculating and building any addresses. First we laying out the allocation of memory as best we can before we ca...
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How to make an element width: 100% minus padding?

... think this is that bad of a solution. In general, wrapping elements in an extra div is a good way to pad elements without pushing the overall width of the element beyond it's parent container. – Jake Wilson Aug 23 '11 at 22:13 ...
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How to break out of nested loops?

...r), but this may confuse the compiler optimization and produce unnecessary extra code. Another possibility is to make such variables static at the module level, but that is not very beautiful, either. C is unfortunately missing nested functions, as they would solve this problem — unless you are wi...
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What is the meaning of “POSIX”?

...cannot be used . is cwd, .. parent portable filenames use at most max 14 chars and 256 for the full path can only contain: a-zA-Z0-9._- See also: what is posix compliance for filesystem? Command line utility API conventions Not mandatory, used by POSIX, but almost nowhere else, notably not in ...