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How do I use extern to share variables between source files?
...e protected against reinclusion, so that type
definitions (enum, struct or union types, or typedefs generally) do not
cause problems. The standard technique is to wrap the body of the
header in a header guard such as:
#ifndef FILE3B_H_INCLUDED
#define FILE3B_H_INCLUDED
...contents of header...
#e...
Git 'fatal: Unable to write new index file'
..., moved my repos around and it was showing this exact error I selected the root folder and then added authenticated the user to check all
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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...s fold
Now this is where it gets a little closer to the FP / mathematical roots, and a little trickier to explain. Reduce is defined formally as part of the MapReduce paradigm, which deals with orderless collections (multisets), Fold is formally defined in terms of recursion (see catamorphism) and...
How do I tell CPAN to install all dependencies?
...pan install App::cpanminus
From then on install modules by executing (as root if necessary)
cpanm Foo::Bar
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Elegant way to search for UTF-8 files with BOM?
...nd easiest way to do this on Windows:
Total Commander → go to project's root dir → find files (Alt + F7) → file types *.* → Find text "EF BB BF" → check 'Hex' checkbox → search
And you get the list :)
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How do I download a package from apt-get without installing it? [closed]
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If you're running as a non-root user you can do something like: mkdir -p /tmp/archives/partial && apt-get -d -o dir::cache=/tmp -o Debug::NoLocking=1 install package
– user153275
May 22 '12 at 16:56
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How does database indexing work? [closed]
... 50 bytes
(record pointer) Special 4 bytes
Note: Pointers in MySQL are 2, 3, 4 or 5 bytes in length depending on the size of the table.
Example 2 - indexing
Given our sample database of r = 5,000,000 records with an index record length of R = 54 bytes and using the default block siz...
Can you detect “dragging” in jQuery?
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Yeah, worry about unnecessary square root in the inner loop of your physics engine, not your jquery click handler...
– PeterT
Nov 6 '18 at 9:47
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Prevent Default on Form Submit jQuery
...n ancient question, but the accepted answer here doesn't really get to the root of the problem.
You can solve this two ways. First with jQuery:
$(document).ready( function() { // Wait until document is fully parsed
$("#cpa-form").on('submit', function(e){
e.preventDefault();
});
})
Or wi...
How to activate virtualenv?
...few times as well, easy to think that manual is telling "execute this from root of the environment folder".
No need to make activate executable via chmod.
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