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Random float number generation
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This is now part of C++11.
– Tomas Andrle
Nov 26 '11 at 20:23
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Why can't I call read() twice on an open file?
...o return the read cursor to the start of the file (docs are here). If you know the file isn't going to be too large, you can also save the read() output to a variable, using it in your findall expressions.
Ps. Dont forget to close the file after you are done with it ;)
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What is the difference between the remap, noremap, nnoremap and vnoremap mapping commands in Vim?
... not to gg) because j will not be expanded for the non-recursive mapping.
Now remember that Vim is a modal editor. It has a normal mode, visual mode and other modes.
For each of these sets of mappings, there is a mapping that works in normal, visual, select and operator modes (:map and :noremap), ...
Display the current time and date in an Android application
...Toast.makeText(this, formattedDate, Toast.LENGTH_SHORT).show();
// Now we display formattedDate value in TextView
TextView txtView = new TextView(this);
txtView.setText("Current Date and Time : "+formattedDate);
txtView.setGravity(Gravity.CENTER);
txtView.setT...
How to display Base64 images in HTML?
...SuGq1uTrfUgMEp9EJ+CQvr+BJ/AAKvAcCiAR+bf9CjAAluzmdX4AEIIAAAAASUVORK5CYII=
Now it's simple to use.
You have to just put it in the src of the image and define there as it is in base64 encoded form.
Example:
<img src="data:image/jpeg;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAZCAYAAADE6YVjAAAAGXRFWHR...
Web Service vs WCF Service
...t as a SOA enabler. What does this mean?
Well, WCF conforms to something known as ABC, where A is the address of the service that you want to communicate with, B stands for the binding and C stands for the contract. This is important because it is possible to change the binding without necessarily ...
What is causing ERROR: there is no unique constraint matching given keys for referenced table?
...atching given keys for referenced table, and having stared at it for while now I can't figure out why this error arises in this situation.
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NSInvocation for Dummies?
...send the addObject: message as follows:
[myArray addObject:myString];
Now, let's say you want to use NSInvocation to send this message at some other point in time:
First, you would prepare an NSInvocation object for use with NSMutableArray's addObject: selector:
NSMethodSignature * mySignatur...
Coding in Other (Spoken) Languages
...tood well the question actually is: "does every single coder in the world know enough English to use the exact same reserved words as I do?"
Well.. English is not the subject here but programming language reserved words. I mean, when I started about 10 yrs ago, I didn't have any clue of English, a...
B-Tree vs Hash Table
...and thus are default.
However if you have a very precise use case and you know exactly what and only what is going to be needed, you can take advantage of hashing indexes.
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