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String formatting: % vs. .format vs. string literal
...Most people do not know that this is actually already defined in the Ansi C99 Std! Check out a recent copy of man sprintf and learn about the $ notation inside % placeholders
– cfi
Feb 20 '13 at 12:42
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How to convert an IPv4 address into a integer in C#?
...eed to swap it around).
For example, my local google.com is at 64.233.187.99. That's equivalent to:
64*2^24 + 233*2^16 + 187*2^8 + 99
= 1089059683
And indeed, http://1089059683/ works as expected (at least in Windows, tested with IE, Firefox and Chrome; doesn't work on iPhone though).
Here's a ...
Get current folder path
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kmote
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answered Mar 27 '13 at 7:47
Thorsten DittmarThorst...
Is it possible to run selenium (Firefox) web driver without a GUI?
... up Xvfb
#install Xvfb
sudo apt-get install xvfb
#set display number to :99
Xvfb :99 -ac &
export DISPLAY=:99
#you are now having an X display by Xvfb
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Where do I find the definition of size_t?
...rrors,2 particularly as 64-bit architectures become more prevalent.
From C99 7.17.1/2
The following types and macros are defined in the standard header stddef.h
<snip>
size_t
which is the unsigned integer type of the result of the sizeof operator
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The Definitive C Book Guide and List
...chie (1988). Still a good, short but complete introduction to C (C90, not C99 or later versions), written by the inventor of C. However, the language has changed and good C style has developed in the last 25 years, and there are parts of the book that show its age.
C: A Reference Manual (5th Editi...
Format number to 2 decimal places
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Truncate always "rounds" down. 1.999 truncated to 2 DP would be 1.99 where 2.00 would mathematically be more correct. If that's not a problem then truncate's fine but you should be aware of it.
– GordonM
Apr 24 '15 at ...
How do I generate random numbers in Dart?
...dom = new Random();
int randomNumber = random.nextInt(100); // from 0 upto 99 included
If you want to add the min limit, add the min limit to the result
int randomNumber = random.nextInt(90) + 10; // from 10 upto 99 included
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Set the layout weight of a TextView programmatically
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Dorje
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answered Jul 11 '10 at 19:33
MacarseMacarse
8...
Using boolean values in C
...
From best to worse:
Option 1 (C99)
#include <stdbool.h>
Option 2
typedef enum { false, true } bool;
Option 3
typedef int bool;
enum { false, true };
Option 4
typedef int bool;
#define true 1
#define false 0
Explanation
Option 1 will wor...