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Setting variable to NULL after free
... only not best practice, it's wrong. For example: foo* bar=getFoo(); /*more_code*/ free(bar); /*more_code*/ return bar != NULL;. Here, setting bar to NULL after the call to free will cause the function to think it never had a bar and return the wrong value!
– David Schwartz
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How to set the current working directory? [duplicate]
...
Perhaps this is what you are looking for:
import os
os.chdir(default_path)
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Why are Subjects not recommended in .NET Reactive Extensions?
...c class MessageListener
{
private readonly IObservable<IMessage> _messages;
private readonly IScheduler _scheduler;
public MessageListener()
{
_scheduler = new EventLoopScheduler();
var messages = ListenToMessages()
.Subscri...
How to check the version before installing a package using apt-get?
...s-tools (= 2:2.8.4-2), adduser
Filename: pool/universe/r/redis/redis-server_2.8.4-2_amd64.deb
Size: 267446
MD5sum: 066f3ce93331b876b691df69d11b7e36
SHA1: f7ffbf228cc10aa6ff23ecc16f8c744928d7782e
SHA256: 2d273574f134dc0d8d10d41b5eab54114dfcf8b716bad4e6d04ad8452fe1627d
Description-en: Persistent key-v...
indexOf method in an object array?
...ethod for doing exactly what Pablo's anonymous map method does.
var idx = _.chain(myArray).pluck("hello").indexOf("Stevie").value();
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if checkbox is checked, do this
...checked
here is my algorithm...
create a global variable lets say var check_holder
check_holder has 3 states
undefined state
0 state
1 state
If the checkbox is clicked,
$(document).on("click","#check",function(){
if(typeof(check_holder)=="undefined"){
//this means that it is th...
Make var_dump look pretty
I have a simple $_GET[] query var set for showing testing data when pulling down queries from the DB.
13 Answers
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How to download an entire directory and subdirectories using wget?
...ader: wget -r -l1 --no-parent http://www.stanford.edu/~boyd/cvxbook/cvxbook_additional_exercises/ was the answer for me. Thanks your answer.
– isomorphismes
Jun 21 '14 at 17:05
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What is WEB-INF used for in a Java EE web application?
...e following structure :
ApplicationName
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|--META-INF
|--WEB-INF
|_web.xml <-- Here is the configuration file of your web app(where you define servlets, filters, listeners...)
|_classes <--Here goes all the classes of your webapp, following the package structure you ...
std::unique_ptr with an incomplete type won't compile
I'm using the pimpl-idiom with std::unique_ptr :
6 Answers
6
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