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How to convert floats to human-readable fractions?
... long m[2][2];
double x, startx;
long maxden;
long ai;
/* read command line arguments */
if (ac != 3) {
fprintf(stderr, "usage: %s r d\n",av[0]); // AF: argument missing
exit(1);
}
startx = x = atof(av[1]);
maxden = atoi(av[2]);
/* initialize ma...
What's the difference between echo, print, and print_r in PHP?
...(if it's an array or an object). print_r prints a variable in a more human-readable form: strings are not quoted, type information is omitted, array sizes aren't given, etc.
var_dump is usually more useful than print_r when debugging, in my experience. It's particularly useful when you don't know e...
Semicolons superfluous at the end of a line in shell scripts?
...
This is false. There is no difference. If you read the same section of the manual properly, you'd see this, just a few lines above: A sequence of one or more newlines may appear in a list to delimit commands, equivalent to a semicolon. So what you quoted about the semico...
How to prevent custom views from losing state across screen orientation changes
...ivate SavedState(Parcel in) {
super(in);
this.stateToSave = in.readInt();
}
@Override
public void writeToParcel(Parcel out, int flags) {
super.writeToParcel(out, flags);
out.writeInt(this.stateToSave);
}
//required field that makes Parcelables from a Par...
Django Rest Framework File Upload
...
@pleasedontbelong RTan asks a pretty good question. Reading RFC-2616 provides a subtlety I wasn't aware of until now. "The fundamental difference between the POST and PUT requests is reflected in the different meaning of the Request-URI. The URI in a POST request identifies th...
Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
... a demonstration.
But first, I will reiterate that demonstration aside, re-read the other comments, since it's truth that CAPTCHA is pointless and not helpful, irrelevant of implementation....
But really, check out CAPTCHA Killer. You can upload a CAPTCHA image, and it will automatically, if not im...
Bash if statement with multiple conditions throws an error
...which prevents the shell from recognizing it as an operator at all. Please read BashFAQ #17 (on grouping) and #31 (on the difference between different types of test expression). Actually, in this case it would be even easier to use an arithmetic expression.
– Gordon Davisson
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How to use Git for Unity3D source control?
...urceTree application as it plugs in perfectly with the Git Flow extension. Read the SourceTree tutorial here on implementing the Git Flow methodology in their application.
Unity3D Ignore Folders
For an up to date version checkout Github maintained Unity.gitignore file without OS specifics.
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What are the options for storing hierarchical data in a relational database? [closed]
...
My favorite answer is as what the first sentence in this thread suggested. Use an Adjacency List to maintain the hierarchy and use Nested Sets to query the hierarchy.
The problem up until now has been that the coversion method from an Adjacecy List to Nested Sets has been frightful...
NSOperation vs Grand Central Dispatch
I'm learning about concurrent programming for iOS. So far I've read about NSOperation/NSOperationQueue and GCD . What are the reasons for using NSOperationQueue over GCD and vice versa?
...