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When are C++ macros beneficial? [closed]
...e macros? Not many (if any).
Are there any other situations that benefit from macros? YES!!!
One place I use macros is with very repetitive code. For example, when wrapping C++ code to be used with other interfaces (.NET, COM, Python, etc...), I need to catch different types of exceptions. Her...
Add a custom attribute to a Laravel / Eloquent model on load?
...erstand how your stuff works. If EventSession::all() returns a JSON object from an API, you are not really using a Laravel model, right? Sorry, I'm confused on how you implemented you model.
– Alexandre Danault
Jun 21 '13 at 13:40
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maximum value of int
... = UINT_MAX;
Unlike using this or that header, here we use the real type from the compiler.
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Aborting a shell script if any command returns a non-zero value?
...ork, but I like to use "#!/usr/bin/env bash" because I frequently run bash from somewhere other than /bin. And "#!/usr/bin/env bash -e" doesn't work. Besides, it's nice to have a place to modify to read "set -xe" when I want to turn on tracing for debugging.
– Ville Laurikar...
In Rails, how do you render JSON using a view?
...is answer, this is actually dangerous for two reasons: it allows injection from user data because it doesn't escape newlines and backslashes, and also <%= html escapes the data so e.g. Sean O'Connor will have his name mangled to Sean O&apos;Connor.
– d4n3
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Why do most fields (class members) in Android tutorial start with `m`?
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This notation comes from AOSP (Android Open Source Project) Code Style Guidelines for Contributors:
Follow Field Naming Conventions
Non-public, non-static field names
start with m.
Static field names start with s.
Other fields ...
Is it possible to animate scrollTop with jQuery?
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I was having issues where the animation was always starting from the top of the page after a page refresh in the other examples.
I fixed this by not animating the css directly but rather calling window.scrollTo(); on each step:
$({myScrollTop:window.pageYOffset}).animate({myScrollTo...
How do you run JavaScript script through the Terminal?
...you may need to wrap or modify it somewhat to allow it to accept arguments from stdin and write to stdout. (I believe Rhino has a mode to emulate standard browser global vars which helps a lot, though I can't find the docs for this now.)
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What is the function __construct used for?
... You can achieve this effect using static methods.
Note: I retrieved this from the log of the (at time of this writing) accepted answer.
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Remove trailing zeros
... scaling factor is implicitly the number 10, raised to an exponent ranging from 0 to 28", which I understand as the decimal number will have at most 28 digits past the decimal point. Any number of zeros >= 28 should work.
– Thomas Materna
Oct 9 '12 at 16:32
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