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Why do I get a warning every time I use malloc?
...d to add:
#include <stdlib.h>
This file includes the declaration for the built-in function malloc. If you don't do that, the compiler thinks you want to define your own function named malloc and it warns you because:
You don't explicitly declare it and
There already is a built-in function...
AtomicInteger lazySet vs. set
...hods to atomic classes":
As probably the last little JSR166 follow-up for Mustang,
we added a "lazySet" method to the Atomic classes
(AtomicInteger, AtomicReference, etc). This is a niche
method that is sometimes useful when fine-tuning code using
non-blocking data structures. The semant...
Webview load html from assets directory
I'm trying to load a html page from the assets directory. I tried this, but it fails.
4 Answers
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CSS background image alt attribute
This is one I have not had to tackle before. I need to use alt tags on all images in a site including those used by CSS background-image attribute.
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How do I test a file upload in rails?
I have a controller which is responsible for accepting JSON files and then processing the JSON files to do some user maintenance for our application. In user testing the file upload and processing works, but of course I would like to automate the process of testing the user maintenance in our testin...
Is there a way to make npm install (the command) to work behind proxy?
Read about a proxy variable in a .npmrc file but it does not work. Trying to avoid manually downloading all require packages and installing.
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How to run a Python script in the background even after I logout SSH?
...
Run nohup python bgservice.py & to get the script to ignore the hangup signal and keep running. Output will be put in nohup.out.
Ideally, you'd run your script with something like supervise so that it can be restarted if (when) it dies.
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Generating CSV file for Excel, how to have a newline inside a value
I need to generate a file for Excel, some of the values in this file contain multiple lines.
19 Answers
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What is the purpose of .PHONY in a Makefile?
...ds that do not represent physical files in the file system. Good examples for this are the common targets "clean" and "all". Chances are this isn't the case, but you may potentially have a file named clean in your main directory. In such a case Make will be confused because by default the clean targ...
What is the purpose of willSet and didSet in Swift?
...point seems to be that sometimes, you need a property that has automatic storage and some behavior, for instance to notify other objects that the property just changed. When all you have is get/set, you need another field to hold the value. With willSet and didSet, you can take action when the value...