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How do I run a program with commandline arguments using GDB within a Bash script?
...args parameter), is to compile normally, and use r arg1 arg2 arg3 directly from within gdb, like so:
$ gcc -g *.c *.h
$ gdb ./a.out
(gdb) r arg1 arg2 arg3
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How to write a cron that will run a script every day at midnight?
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from the man page
linux$ man -S 5 crontab
cron(8) examines cron entries once every minute.
The time and date fields are:
field allowed values
----- --------------
minu...
Android: how to draw a border to a LinearLayout
...age the xml shape drawable resource power if that fits your needs. With a "from scratch" project (for android-8), define res/layout/main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
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Performance of FOR vs FOREACH in PHP
...luate at parse time whether anything modifies the array. This prevents it from evaluating the count once.
But even once you fix it with "$c=count($x); for ($i=0; $i<$c; $i++) the $i<$c is a bunch of Zend opcodes at best, as is the $i++. In the course of 100000 iterations, this can matter. F...
Use dynamic variable names in JavaScript
... scenario, the variables a and b would get stored in the Activation Object from foobar, which we cannot access (of course we could access those directly by calling a and b).
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Difference between freeze and seal
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Object.seal
It prevents adding and/or removing properties from the sealed object; using delete will return false
It makes every existing property non-configurable: they cannot be converted from 'data descriptors' to 'accessor descriptors' (and vice versa), and no attribute of access...
Are there any reasons to use private properties in C#?
...wow, I should totally steal that, and then forget all about who I stole it from."
– Eric Lippert
Mar 24 '11 at 20:04
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Detecting if an NSString contains…?
... "length" of NSRange should be tested...not "location".Here it is directly from source: "These methods return length==0 if the target string is not found. So, to check for containment: ([str rangeOfString:@"target"].length > 0). Note that the length of the range returned by these methods might b...
C/C++ line number
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Reference from GCC manual: "__FUNCTION__ and __PRETTY_FUNCTION__ were treated as string literals; they could be used to initialize char arrays, and they could be concatenated with other string literals. GCC 3.4 and later treat them as ...
Why switch is faster than if
...ix: No, refer to this for info: artima.com/underthehood/flowP.html . Quote from article: When the JVM encounters a tableswitch instruction, it can simply check to see if the key is within the range defined by low and high. If not, it takes the default branch offset. If so, it just subtracts low from...