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Declaration/definition of variables locations in ObjectiveC?
...one could be declaring and defining variables. On one hand we have the traditional C approach, on the other we have the new ObjectiveC directives that add OO on top of that. Could you folks helps me understand the best practice and situations where I'd want to use these locations for my variables an...
HTTPS connections over proxy servers
Is it possible to have HTTPS connections over proxy servers? If yes, what kind of proxy server allows this?
9 Answers
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Determine the line of code that causes a segmentation fault?
... do that but GDB (a debugger) sure can. Compile you program using the -g switch, like this:
gcc program.c -g
Then use gdb:
$ gdb ./a.out
(gdb) run
<segfault happens here>
(gdb) backtrace
<offending code is shown here>
Here is a nice tutorial to get you started with GDB.
Where the ...
Installing Python packages from local file system folder to virtualenv with pip
Is it possible to install packages using pip from the local filesystem?
10 Answers
10
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Type erasure techniques
(With type erasure, I mean hiding some or all of the type information regarding a class, somewhat like Boost.Any.)
I want to get a hold of type erasure techniques, while also sharing those, which I know of. My hope is kinda to find some crazy technique that somebody thought of in his/her darkest h...
How to round up the result of integer division?
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For languages with a proper Euclidian-division operator such as Python, an even simpler approach would be pageCount = -((-records) // recordsPerPage).
– supercat
Jul 4 '18 at 16:45
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Check if a value is an object in JavaScript
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Original answer:
Try using typeof(var) and/or var instanceof something.
EDIT: This answer gives an idea of how to examine variable's properties, but it is not a bulletproof recipe (after all there's no recipe at all!) for checking whether it's an object, far from it. Since people tend to look for s...
Generating Guids in Ruby
I have problem that is really easily solved with Guids.
10 Answers
10
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_DEBUG vs NDEBUG
...n appropriate, ie _DEBUG if you want your debugging code to be consistent with the MS CRT debugging techniques and NDEBUG if you want to be consistent with assert().
If you define your own debugging macros (and you don't hack the compiler or C runtime), avoid starting names with an underscore, as t...
How to make vim paste from (and copy to) system's clipboard?
Unlike other editors, vim stores copied text in its own clipboard. So, it's very hard for me to copy some text from a webpage and paste it into the current working file. It so happens I have to either open gedit or type it manually.
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