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Why should the copy constructor accept its parameter by reference in C++?
...nstructor that takes another object by value or by reference. You already know why passing by value doesn't work, so the only way is passing by reference or const reference. If your "copy-constructor" would take a pointer to an object then the compiler's code would have to be object o(&other_obj...
How do I remove all non alphanumeric characters from a string except dash?
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@BrianScott I know this is old, but was found in a search so I feel this is relevant. This actually depends on the version of .NET you are running under. > 2.0 uses "" & string.Empty exactly the same. stackoverflow.com/questions/151...
Right way to reverse pandas.DataFrame?
...index[::-1])
or simply:
data.iloc[::-1]
will reverse your data frame, if you want to have a for loop which goes from down to up you may do:
for idx in reversed(data.index):
print(idx, data.loc[idx, 'Even'], data.loc[idx, 'Odd'])
or
for idx in reversed(data.index):
print(idx, data.Ev...
Are there any O(1/n) algorithms?
...ensible when we take the mathematical definition of the Big O notation:
Now you can easily substitute g(x) for 1/x … it's obvious that the above definition still holds for some f.
For the purpose of estimating asymptotic run-time growth, this is less viable … a meaningful algorithm cannot ge...
IntelliJ IDEA JDK configuration on Mac OS
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If you are on Mac OS X or Ubuntu, the problem is caused by the symlinks to the JDK. File | Invalidate Caches should help. If it doesn't, specify the JDK path to the direct JDK Home folder, not a symlink.
Invalidate Caches me...
How to add text inside the doughnut chart using Chart.js?
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You have to modify the code like:
in chart.Doughnut.defaults
labelFontFamily : "Arial",
labelFontStyle : "normal",
labelFontSize : 24,
labelFontColor : "#666"
and then in function drawPieSegments
ctx.fillText(data[0].value + "%", width...
How to have stored properties in Swift, the same way I had on Objective-C?
I am switching an application from Objective-C to Swift, which I have a couple of categories with stored properties, for example:
...
Html5 data-* with asp.net mvc TextboxFor html attributes
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Is this behaviour specified anywhere :) ?
– Rookian
Jul 23 '12 at 13:37
5
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Use gulp to select and move directories and their files
... './icons/**/*.*',
'./src/page_action/**/*.*',
'./manifest.json'
];
gulp.task('move',['clean'], function(){
// the base option sets the relative root for the set of files,
// preserving the folder structure
gulp.src(filesToMove, { base: './' })
.pipe(gulp.dest('dis...
Seeking useful Eclipse Java code templates [closed]
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Cool. I didn't know about the ${:import ...} thingy.
– JesperE
Jun 23 '09 at 5:13
3
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