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undefined reference to boost::system::system_category() when compiling
...oost libraries. I have the 1.46-dev Boost libraries from the Ubuntu Repository installed, but I get an error when compiling the program.
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What is the perfect counterpart in Python for “while not EOF”
To read some text file, in C or Pascal, I always use the following snippets to read the data until EOF:
7 Answers
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Matplotlib discrete colorbar
I am trying to make a discrete colorbar for a scatterplot in matplotlib
7 Answers
7
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Change the image source on rollover using jQuery
...er.gif", ".gif");
$(this).attr("src", src);
});
});
For those that use url image sources:
$(function() {
$("img")
.mouseover(function() {
var src = $(this).attr("src");
var regex = /_normal.svg/gi;
src = this.src...
JavaScript equivalent of PHP's in_array()
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No, it doesn't have one. For this reason most popular libraries come with one in their utility packages. Check out jQuery's inArray and Prototype's Array.indexOf for examples.
jQuery's implementation of it is as simple as you might expect:
function...
Pip freeze vs. pip list
...$ pip install -r requirements.txt
The packages need to be in a specific format for pip to understand, which is
feedparser==5.1.3
wsgiref==0.1.2
django==1.4.2
...
That is the "requirements format".
Here, django==1.4.2 implies install django version 1.4.2 (even though the latest is 1.6.x).
If y...
Why should a Java class implement comparable?
... real life sample. Note that String also implements Comparable.
class Author implements Comparable<Author>{
String firstName;
String lastName;
@Override
public int compareTo(Author other){
// compareTo should return < 0 if this is supposed to be
// less tha...
Commands executed from vim are not recognizing bash command aliases
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@Kevin: there is no way to get the normal behavior of viw with the interactive bash ? (execute the command, wait for any key, come back to vim)
– Mayeu
Oct 24 '12 at 13:21
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UnboundLocalError on local variable when reassigned after first use
The following code works as expected in both Python 2.5 and 3.0:
12 Answers
12
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Using jQuery how to get click coordinates on the target element
I have the following event handler for my html element
6 Answers
6
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