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Is there any overhead to declaring a variable within a loop? (C++)
...this basic thing. Once he laughed at me declaring a variable inside a loop and I was wondering what's wrong until he cited performance as the reason not to do so and I was like "WTF!?".
– Mehrdad Afshari
Jun 11 '09 at 19:35
...
How to implement __iter__(self) for a container object (Python)
... to the sequence.
The following will create an iterator that yields five, and then every item in some_list.
def __iter__(self):
yield 5
yield from some_list
Pre-3.3, yield from didn't exist, so you would have to do:
def __iter__(self):
yield 5
for x in some_list:
yield x
...
Node.js spawn child process and get terminal output live
...that outputs 'hi', sleeps for a second, outputs 'hi', sleeps for 1 second, and so on and so forth. Now I thought I would be able to tackle this problem with this model.
...
What is the difference between javac and the Eclipse compiler?
...mes with its own compiler is also apparent because you can write, compile, and run Java code in Eclipse without even installing the Java SDK.
A few examples where ECJ is preferred over javac is:
Apache Tomcat uses ECJ to compile JSPs,
IntelliJ IDEA has support for ECJ, as of GNU Compiler for Jav...
Restoring Nuget References?
...he packages.
In the NuGet Package Manager Console enter the following command:
Update-Package -Reinstall -ProjectName Your.Project.Name
If you want to re-install packages and restore references for the whole solution omit the -ProjectName parameter.
...
Full Screen DialogFragment in Android
....layout.fragment_dialog, container, false);
return v;
}
}
}
and the layouts:
fragment_dialog.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout...
Releasing memory in Python
...llocator. The int type maintains a freelist with its own allocated memory, and clearing it requires calling PyInt_ClearFreeList(). This can be called indirectly by doing a full gc.collect.
Try it like this, and tell me what you get. Here's the link for psutil.Process.memory_info.
import os
import...
Have Grunt generate index.html for different setups
...n:prod', 'uglify:prod', 'cssmin:prod', 'copy:prod', 'preprocess:prod']);
And in the /src/tmpl/index.html template file (for example):
<!-- @if NODE_ENV == 'DEVELOPMENT' -->
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
<script sr...
What's the difference between the four File Results in ASP.NET MVC
...uld like to return as a file
FilePathResult - when you have a file on disk and would like to return its content (you give a path)
FileStreamResult - you have a stream open, you want to return its content as a file
However, you'll rarely have to use these classes - you can just use one of Controlle...
How to pass optional arguments to a method in C++?
... else
do_something_else();
}
you can call myfunc in both ways and both are valid
myfunc(10); // Mode will be set to default 0
myfunc(10, 1); // Mode will be set to 1
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