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What predefined macro can I use to detect clang?
...d to compile my source code. I can easily find predefined macros to check for MSVC or GCC (see http://predef.sourceforge.net/ for example), but I cannot find any macro to check for clang.
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Is it safe to assume strict comparison in a JavaScript switch statement?
I have a variable that can either be boolean false , or an integer (including 0). I want to put it in a switch statement like:
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FFMPEG (libx264) “height not divisible by 2”
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The answer to the original question which does not want to scale the video is:
-vf "pad=ceil(iw/2)*2:ceil(ih/2)*2"
Command:
ffmpeg -r 24 -i frame_%05d.jpg -vcodec libx264 -y -an video.mp4 -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2"
Basically, .h...
Mapping two integers to one, in a unique and deterministic way
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You're looking for a bijective NxN -> N mapping. These are used for e.g. dovetailing. Have a look at this PDF for an introduction to so-called pairing functions. Wikipedia introduces a specific pairing function, namely the Cantor pairing ...
Adding services after container has been built
... that has already been used to resolve can result in undeterministic behavior. For instance, replacing components that are dependencies of already resolved singletons cause the original component to stay referenced.
– Steven
May 18 '16 at 8:33
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How to move an iFrame in the DOM without losing its state?
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Well, actually, I really don't care if it reloads or not, since their locations are about:blank, but what I do care about is losing the contents inside the frame.
– JCOC611
Nov 29 '11 at 22:15
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git - diff of current changes before committing
I have changed several files in a git repository, but have not committed them yet.
2 Answers
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Python, add trailing slash to directory string, os independently
How can I add a trailing slash ( / for *nix, \ for win32) to a directory string, if the tailing slash is not already there? Thanks!
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Can you attach a UIGestureRecognizer to multiple views?
... you can only use a gesture recognizer once, I'm not sure if this is a bug or it just needs some more documentation.
12 Ans...
How do I find a list of Homebrew's installable packages?
...ew list will show you the list of installed packages. You can also append formulae, for example brew list postgres will tell you of files installed by postgres (providing it is indeed installed).
brew search <search term> will list the possible packages that you can install. brew search post ...