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Maximum Java heap size of a 32-bit JVM on a 64-bit OS
...e <2GB (Windows internals book says 2GB for user processes)
For 32-bit BSD / Linux: <3GB (from the Devil Book)
For 32-bit MacOS X: <4GB (from Mac OS X internals book)
Not sure about 32-bit Solaris, try the above code and let us know.
For a 64-bit host OS, if the JVM is ...
What is AF_INET, and why do I need it?
...o implement IPC socket communication. AF stands for Address Family.
As in BSD standard Socket (adopted in Python socket module) addresses are represented as follows:
A single string is used for the AF_UNIX/AF_LOCAL address family. This option is used for IPC on local machines where no IP address ...
How does the static modifier affect this code?
...For type
boolean, the default value is false. For all reference types (§4.3),
the default value is null.
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Update Row if it Exists Else Insert Logic with Entity Framework
...
As of Entity Framework 4.3, there is an AddOrUpdate method at namespace System.Data.Entity.Migrations:
public static void AddOrUpdate<TEntity>(
this IDbSet<TEntity> set,
params TEntity[] entities
)
where TEntity : class
which...
Assert equals between 2 Lists in Junit
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This is a legacy answer, suitable for JUnit 4.3 and below. The modern version of JUnit includes a built-in readable failure messages in the assertThat method. Prefer other answers on this question, if possible.
List<E> a = resultFromTest();
List<E> expecte...
How to list files in a directory in a C program?
... Just an aside: Not all platforms will fill out d_type, but Linux and BSD will (I know the question is tagged Linux, just extending on the answer a little); even then, not all filesystems are supported uniformly, however it should work with most FSs.
– omninonsense
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How to pipe stdout while keeping it on screen ? (and not to a output file)
... @PaulBissex /dev/tty is a mandatory Unix device. Are you running in a BSD jail?
– jlliagre
Jan 27 '16 at 22:16
1
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Where in memory are my variables stored in C?
...
On some systems, (namely Linux and *BSD) there is also alloca which works similar to malloc, but does stack allocation.
– Andreas Grapentin
Jan 29 '13 at 19:30
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Creating an abstract class in Objective-C
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Just riffing on @Barry Wark's answer above (and updating for iOS 4.3) and leaving this for my own reference:
#define mustOverride() @throw [NSException exceptionWithName:NSInvalidArgumentException reason:[NSString stringWithFormat:@"%s must be overridden in a subclass/category", __PRETTY_...
Getting root permissions on a file inside of vi? [closed]
...of these issues, you can use the following command:
" On POSIX (Linux/Mac/BSD):
:silent execute 'write !sudo tee ' . shellescape(@%, 1) . ' >/dev/null'
" Depending on the implementation, you might need this on Windows:
:silent execute 'write !sudo tee ' . shellescape(@%, 1) . ' >NUL'
These...