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When does invoking a member function on a null instance result in undefined behavior?
...tly stated. (Notes are non-normative.)
However, one can try to deduced it from §3.10/2:
An lvalue refers to an object or function.
When dereferencing, the result is an lvalue. A null pointer does not refer to an object, therefore when we use the lvalue we have undefined behavior. The proble...
How do I format XML in Notepad++?
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if you cant find XML Tools under Plugins, intall it from Plugins > Plugins Manager > Show Plugins Manager
– ala
Apr 3 '12 at 1:56
31
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Pseudo-terminal will not be allocated because stdin is not a terminal
...reates some directories on a remote server and then uses scp to copy files from my local machine onto the remote. Here's what I have so far:
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Convert floats to ints in Pandas?
I've been working with data imported from a CSV. Pandas changed some columns to float, so now the numbers in these columns get displayed as floating points! However, I need them to be displayed as integers, or, without comma. Is there a way to convert them to integers or not display the comma?
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Batch: Remove file extension
I have the following batch script from Wikipedia:
7 Answers
7
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How to find out how many lines of code there are in an Xcode project?
...and it is fairly easy to use. It is a PERL script that you can add and run from your project directory.
PERL is already part of Mac OS and you can invoke the script this way to find out your number of lines you have written:
perl cloc-1.56.pl ./YourDirectoryWhereYourSourcesAre
This is an example...
What is the use of hashCode in Java?
...implementations like HashMap, HashTable, HashSet, etc.
The value received from hashCode() is used as the bucket number for storing elements of the set/map. This bucket number is the address of the element inside the set/map.
When you do contains() it will take the hash code of the element, then lo...
Intellij IDEA Java classes not auto compiling on save
Yesterday I switched to IntelliJ IDEA from Eclipse.
18 Answers
18
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Need to handle uncaught exception and send log file
...e solution (almost: I omitted the UI layout and button handling) - derived from a lot of experimentation and various posts from others related to issues that came up along the way.
There are a number of things you need to do:
Handle uncaughtException in your Application subclass.
After catchin...
Finding local IP addresses using Python's stdlib
...e IP address instead of a domain name -- it must be faster and independent from DNS availability. E.g. we can use 8.8.8.8 IP -- Google's public DNS server.
– wobmene
Apr 16 '12 at 12:27
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