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Declaring variables inside loops, good practice or bad practice?
..., whose sole purpose is to declare variables which must retain their value from one loop to another. This typically includes the loop counter itself.
{
int i, retainValue;
for (i=0; i<N; i++)
{
int tmpValue;
/* tmpValue is uninitialized */
/* retainValue still ha...
How to set default value for form field in Symfony2?
... In my testing empty_data doesn't allow me to override the default value from a field submitted empty, e.g. if you want to save to the database as 0 instead of NULL. This bug is still outstanding as far as I can tell: github.com/symfony/symfony/issues/5906
– Chadwick Meyer
...
What is a stack trace, and how can I use it to debug my application errors?
...ot more. What we're mostly concerned about is looking for methods that are from our code, which would be anything in the com.example.myproject package. From the second example (above), we'd first want to look down for the root cause, which is:
Caused by: java.sql.SQLException
However, all the met...
Django TemplateDoesNotExist?
...achine is running Python 2.5 and Nginx on Ubuntu 8.10, with Django builded from latest development trunk.
20 Answers
...
Installing SetupTools on 64-bit Windows
...Node\Python\PythonCore\2.6\InstallPath and copy over the InstallPath value from HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\InstallPath. See the answer below for more details.
If you do this, beware that setuptools may only install 32-bit libraries.
NOTE: the responses below offer more detai...
How to increase IDE memory limit in IntelliJ IDEA on Mac?
...pply JVM options was introduced in IDEA 12:
Now it can take VM options from
~/Library/Preferences/<appFolder>/idea.vmoptions and system properties
from ~/Library/Preferences/<appFolder>/idea.properties.
For example, to use -Xmx2048m option you should copy the original .vmoption...
Determine if two rectangles overlap each other?
I am trying to write a C++ program that takes the following inputs from the user to construct rectangles (between 2 and 5): height, width, x-pos, y-pos. All of these rectangles will exist parallel to the x and the y axis, that is all of their edges will have slopes of 0 or infinity.
...
git-checkout older revision of a file under a new name
...ing tree’s root directory. This is most useful to address a blob or tree from a commit or tree that has the same tree structure as the working tree.
Note that <path> here is FULL path relative to the top directory of your project, i.e. the directory with .git/ directory. (Or to be m...
Are string.Equals() and == operator really same? [duplicate]
Are they really same? Today, I ran into this problem. Here is the dump from the Immediate Window:
8 Answers
...
Git: Remove committed file after push
...concile his local branch head with the central one:
To remove file change from last commit:
to revert the file to the state before the last commit, do:
git checkout HEAD^ /path/to/file
to update the last commit with the reverted file, do:
git commit --amend
to push the updated commit to the r...