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Meaning of 'const' last in a function declaration of a class?
...can change the instance members, which you cannot do in the const version. If you change the method declaration in the above example to the code below you will get some errors.
void Foo()
{
counter++; //this works
std::cout << "Foo" << std::endl;
}
v...
Is there a way to pass optional parameters to a function?
...le calling it and in the function definition have some code based on "only if the optional parameter is passed"
5 Answers
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How to convert a string to utf-8 in Python
...icode_string)
(<type 'str'>, <type 'unicode'>)
^ This is the difference between a byte string (plain_string) and a unicode string.
>>> s = "Hello!"
>>> u = unicode(s, "utf-8")
^ Converting to unicode and specifying the encoding.
In Python 3
All strings are unicode. Th...
Python: try statement in a single line
...safer way (and the prevailing style) is to set all variables to something. If they might not get set, set them to None first (or 0 or '' or something if it is more applicable.)
If you do assign all the names you are interested in first, you do have options.
The best option is an if statement.
...
How do I install an R package from source?
...
If you have the file locally, then use install.packages() and set the repos=NULL:
install.packages(path_to_file, repos = NULL, type="source")
Where path_to_file would represent the full path and file name:
On Windows i...
how to return index of a sorted list? [duplicate]
...return a list with the index of the sorted items in the list. For example, if the list I want to sort is [2,3,1,4,5] , I need [2,0,1,3,4] to be returned.
...
Facebook Open Graph not clearing cache
...ge - the debugger WILL warn you of this and but they'll be ignored (yes I know you mentioned this I just wanted to stress the point)
– Simon_Weaver
Aug 10 '15 at 17:55
...
Get a random item from a JavaScript array [duplicate]
...ar randomElement = items[Math.floor(Math.random()*items.length)] if (objResults[randomElement]){ objResults[randomElement]++ }else{ objResults[randomElement] = 1 } } console.log(objResults) The results are pretty randomized af...
Matplotlib make tick labels font size smaller
...n(yn),1,i+1)
ax.plot(x, y, ls='solid', color=COLORS[i])
if i != len(yn) - 1:
# all but last
ax.set_xticklabels( () )
else:
for tick in ax.xaxis.get_major_ticks():
tick.label.set_fontsize(14)
# specify in...
How can I redirect HTTP requests made from an iPad?
...o resolve requests from your iPhone / iPad. So let's setup the Apache part now...
You may need to install some modules first.
sudo apt-get install libapache2-mod-proxy-html
sudo a2enmod proxy proxy_http proxy_html
sudo apache2ctl graceful
Then create a virtual host file, for example /etc/apache...