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Do you use NULL or 0 (zero) for pointers in C++?
In the early days of C++ when it was bolted on top of C, you could not use NULL as it was defined as (void*)0 . You could not assign NULL to any pointer other than void* , which made it kind of useless. Back in those days, it was accepted that you used 0 (zero) for null pointers.
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How Python web frameworks, WSGI and CGI fit together
I have a Bluehost account where I can run Python scripts as CGI. I guess it's the simplest CGI, because to run I have to define the following in .htaccess :
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Search and replace a line in a file in Python
I want to loop over the contents of a text file and do a search and replace on some lines and write the result back to the file. I could first load the whole file in memory and then write it back, but that probably is not the best way to do it.
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How do I make the whole area of a list item in my navigation bar, clickable as a link?
I've got a horizontal navigation bar made from an unordered list, and each list item has a lot of padding to make it look nice, but the only area that works as a link is the text itself. How can I enable the user to click anywhere in the list item to active the link?
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How to access outer class from an inner class?
I have a situation like so...
11 Answers
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combinations between two lists?
It’s been a while and I’m having trouble wrapping my head around a algorithm I’m try to make. Basically, I have two lists and want to get all the combinations of the two lists.
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How can I detect if a browser is blocking a popup?
Occasionally, I've come across a webpage that tries to pop open a new window (for user input, or something important), but the popup blocker prevents this from happening.
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How to change a git submodule to point to a subfolder?
Skimming through the SubModule tutorial , I created a submodule out of the boto project . Then, I discovered that I actually need only a subset of this project - specifically, the boto folder.
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Email Address Validation in Android on EditText [duplicate]
How can we perform Email Validation on edittext in android ? I have gone through google & SO but I didn't find out a simple way to validate it.
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Using a dispatch_once singleton model in Swift
I'm trying to work out an appropriate singleton model for usage in Swift. So far, I've been able to get a non-thread safe model working as:
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