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Constants in Objective-C
...PORT if your code will not be used in mixed C/C++ environments or on other platforms)
You can include this file in each file that uses the constants or in the pre-compiled header for the project.
You define these constants in a .m file like
// Constants.m
NSString *const MyFirstConstant = @"Firs...
Best practice for creating millions of small temporary objects
... a bit higher if you use final fields as they require memory fence on some platforms (namely ARM/Power), on x86 it is free, though.
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Vim Insert Mode on Mac OS X
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Vim enters the insert mode using i (or a for append), regardless of platform. Overwrite mode is only rarely entered using Shift+r. I've never used the Insert key here.
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Is there a standard sign function (signum, sgn) in C/C++?
...yone actually checked what code GCC/G++/any other compiler emits on a real platform? My guess is that the "branchless" version uses two branches instead of one. Bitshifting is probably a lot faster - and more portable in terms of performance.
– Jørgen Fogh
Sep...
How do you rename a Git tag?
...ag. I use this, because some of the people I work with cannot build for my platform, so sometimes there will be build errors. I can then quickly get a version that builds, by checking out that tag. When the new sources builds, I just move the tag, or I rename it to builds##, where ## is a number (de...
How do you use gcc to generate assembly code in Intel syntax?
...t (the default one). Darwin does not support intel.
It may work on your platform.
For Mac OSX:
clang++ -S -mllvm --x86-asm-syntax=intel test.cpp
Source: https://stackoverflow.com/a/11957826/950427
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How to get the current directory in a C program?
...the question is tagged Unix, people also get to visit it when their target platform is Windows, and the answer for Windows is the GetCurrentDirectory() function:
DWORD WINAPI GetCurrentDirectory(
_In_ DWORD nBufferLength,
_Out_ LPTSTR lpBuffer
);
These answers apply to both C and C++ code.
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How to change value of process.env.PORT in node.js?
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You can use cross platform solution https://www.npmjs.com/package/cross-env
$ cross-env PORT=1234
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How can I catch a ctrl-c event?
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Yeah, this is a platform dependent question.
If you are writing a console program on POSIX,
use the signal API (#include <signal.h>).
In a WIN32 GUI application you should handle the WM_KEYDOWN message.
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How to parse JSON using Node.js? [closed]
...-vars#setting-up-config-vars-for-a-deployed-application. Find out how your platform does it, and use process.env to retrieve the config vars from within the code.
Parsing a string containing JSON data
var str = '{ "name": "John Doe", "age": 42 }';
var obj = JSON.parse(str);
Parsing a file c...