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Git: can I suppress listing of 'modified content'/dirty submodule entries in status, diff, etc?
Somewhen (around the 1.6.x releases, I think) git became aware of changes inside submodules. That only serves to annoy me:
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Undefined reference to `pow' and `floor'
...u can now see, functions pow, floor are linked to GLIBC_2.2.5.
Parameters order is important too, unless your system is configured to use shared librares by default, my system is not, so when I issue:
$ gcc -lm fib.o
fib.o: In function `fibo':
fib.c:(.text+0x57): undefined reference to `pow'
fib.c...
What is the correct way of using C++11's range-based for?
...gers,
but instances of a more complex class, with custom copy constructor, etc.
// A sample test class, with custom copy semantics.
class X
{
public:
X()
: m_data(0)
{}
X(int data)
: m_data(data)
{}
~X()
{}
X(const X& other)
: m_data(ot...
What are the differences between Helper and Utility classes?
...becoming useless. Examples: Vector3, RandomNumberGenerator, StringMatcher, etc...
A "helper" seems to be any class whose design is to aid another class. These may or may not depend on your project. If you're creating a GameNetworkClient class, you could say the GameNetworkConnection class is a 'he...
sed command with -i option (in-place editing) works fine on Ubuntu but not Mac [duplicate]
...
Oh, and if you don't want the backup, run rm -f /etc/hosts.bak after running the sed. That's simpler than trying to work out which variant of sed you have installed or other gizmos I've seen suggested. I hope you keep the file under version control (or otherwise backed up...
What is the difference between UNION and UNION ALL?
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UNION removes duplicates, whereas UNION ALL does not.
In order to remove duplicates the result set must be sorted, and this may have an impact on the performance of the UNION, depending on the volume of data being sorted, and the settings of various RDBMS parameters ( For Oracle PG...
Run a PostgreSQL .sql file using command line arguments
...tements in them and need to run these inserts on my PostgreSQL database in order to add them to a table. The files are that large that it is impossible to open them and copy the INSERT statements into an editor window and run them there. I found on the Internet that you can use the following by navi...
Skip List vs. Binary Search Tree
...th comparable performance to a balanced tree). I find that implementing in-order traversal (forwards and backwards) is far simpler because a skip-list effectively has a linked list inside its implementation.
share
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How to programmatically set style attribute in a view
...ssible to create a style for a button which defines the text size, margins etc etc and then apply this to a button programatically. Surely its possible say if I have six buttons which want to have the same style?
– Bear
Jan 7 '12 at 2:30
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Checking for an empty field with MySQL
...er late to this discussion, but the statement will work if you reverse the order: "AND ((email IS NOT NULL) AND (email != '')). If evaluated in the other order, the statement evaluates as null (not TRUE) if the email address is NULL, and thus will not be either TRUE or FALSE. So the IS NULL check...