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CGContextDrawImage draws image upside down when passed UIImage.CGImage
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Good point, though mostly you don't need custom alpha levels for drawing an image (typically those are baked into images ahead of time for things that need alpha). Basically my motto is, use a little code as you can because more code means more...
How to redirect both stdout and stderr to a file [duplicate]
... answered Sep 23 '11 at 10:14
Costi CiudatuCosti Ciudatu
31.8k55 gold badges4949 silver badges8888 bronze badges
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Why does the order of the loops affect performance when iterating over a 2D array?
Below are two programs that are almost identical except that I switched the i and j variables around. They both run in different amounts of time. Could someone explain why this happens?
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How do I get the directory that a program is running from?
Is there a platform-agnostic and filesystem-agnostic method to obtain the full path of the directory from where a program is running using C/C++? Not to be confused with the current working directory. (Please don't suggest libraries unless they're standard ones like clib or STL.)
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Match two strings in one line with grep
...nswered Dec 20 '10 at 6:16
dheerosaurdheerosaur
11.6k66 gold badges2727 silver badges3030 bronze badges
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Update git commit author date when amending
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FTR, looks like on OS X, date doesn't know -R. Using date without options did the job anyway
– ksol
Feb 2 '12 at 10:29
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How to add /usr/local/bin in $PATH on Mac
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While you can do this, it's not the OS X way. Paths on OS X are built using /usr/libexec/path_helper, called from the default /etc/profile. Start at man path_helper then add your paths in files in /etc/paths.d. You will find that pretty much every path setting ...
Why are dates calculated from January 1st, 1970?
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It is the standard of Unix time.
Unix time, or POSIX time, is a system for describing points in time, defined as the number of seconds elapsed since midnight proleptic Coordinated Universal Time (UTC) of January 1, 1970, not counting leap seconds.
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How to install GCC piece by piece with GMP, MPFR, MPC, ELF, without shared libraries?
...nstall gcc # for Debian, Ubuntu, etc.
yum install gcc # for RedHat, CentOS, etc.
brew install gcc # for Mac OS X
The Hard Way
GCC says the answer here is "the hard way" because it builds everything piece by piece, and does not use shared libraries.
GCC infrastructure
Get the GCC infrastru...
What's the meaning of Base SDK, iOS deployment target, Target, and Project in xcode
...base SDK to 7, what does it mean? It could mean that the app would run on iOS 7. But that's what iOS deployment target is for.
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