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When are C++ macros beneficial? [closed]
... FILE generates a string constant, which will be concatenated with the ":" into a single string by the pre-processor.
– Frank Szczerba
Mar 19 '09 at 23:59
12
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Calculate distance between two points in google maps V3
...y>
private DistanceAlgorithm() { }
/// <summary>
/// Convert degrees to Radians
/// </summary>
/// <param name="x">Degrees</param>
/// <returns>The equivalent in radians</returns>
public static double Radians(double x)
{
...
How to print to console when using Qt
...hat variables do you want to print? If you mean QStrings, those need to be converted to c-Strings. Try:
std::cout << myString.toAscii().data();
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...
Command prompt won't change directory to another drive
...are enabled CHDIR changes as follows:
The current directory string is converted to use the same case as
the on disk names. So CD C:\TEMP would actually set the current
directory to C:\Temp if that is the case on disk.
CHDIR command does not treat spaces as delimiters, so it is possibl...
Aborting a shell script if any command returns a non-zero value?
...r part of an && or || list.
See the bash(1) man page on the "set" internal command for more details.
I personally start almost all shell scripts with "set -e". It's really annoying to have a script stubbornly continue when something fails in the middle and breaks assumptions for the rest ...
What is data oriented design?
...ted Approach
In OOP you would describe balls like this:
class Ball {
Point position;
Color color;
double radius;
void draw();
};
And then you would create a collection of balls like this:
vector<Ball> balls;
Data Oriented Approach
In Data Oriented Design, however, you are mo...
How to pass an object into a state using UI-router?
...eter:
Well, there is no direct way how to do it now, as every parameter is converted to string (EDIT: since 0.2.13, this is no longer true - you can use objects directly), but you can workaround it by creating the string on your own
toParamsJson = JSON.stringify(toStateParams);
and in target cont...
How can a Java variable be different from itself?
...Float.NaN:
float x = Float.NaN; // <--
if (x == x) {
System.out.println("Ok");
} else {
System.out.println("Not ok");
}
Not ok
You can do the same with Double.NaN.
From JLS §15.21.1. Numerical Equality Operators == and !=:
Floating-point equality testing is performed in accordance...
Preview an image before it is uploaded
...target.result);
}
reader.readAsDataURL(input.files[0]); // convert to base64 string
}
}
$("#imgInp").change(function() {
readURL(this);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form runat="server">
...
UIView bottom border?
...
Nice snippet. I refactored this and converted to Swift. You can find it here.
– Isuru
Feb 11 '15 at 7:04
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