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Good Hash Function for Strings
.... As for why, a quick search on google reveals this article: computinglife.wordpress.com/2008/11/20/… explaining why 31 was used for Java string hashing. There is no mathematical proof given, but it does explain the general concept as to why primes work better.
– Pharap
...
vim repeat find next character 'x'
... x to find next occurrence of character 'x',
but overlook that there is a word (or more words) containing 'x' in between the word I want to edit and the beginning cursor position.
...
What are the minimum margins most printers can handle?
... had a smaller margins or something like an IBM 3812. You can always open Word and set page margins to 0, Word will prompt to fix these, the values it enters are the smallest margins the device supports are reported by the driver. The Lexmark laser beside me shows .248".
– Do...
Do Java arrays have a maximum size?
...u can see this claim being repeated:
/**
* Some VMs reserve some header words in an array.
* Attempts to allocate larger arrays may result in
* OutOfMemoryError: Requested array size exceeds VM limit
*/
private static final int MAX_ARRAY_SIZE = Integer.MAX_VALUE - 8;
which is added by Marti...
How to generate keyboard events in Python?
... ("dy", wintypes.LONG),
("mouseData", wintypes.DWORD),
("dwFlags", wintypes.DWORD),
("time", wintypes.DWORD),
("dwExtraInfo", wintypes.ULONG_PTR))
class KEYBDINPUT(ctypes.Structure):
_fields_ = (("wVk", ...
LEFT JOIN vs. LEFT OUTER JOIN in SQL Server
...T | RIGHT | FULL } [ OUTER ] } } [ <join_hint> ] ]
JOIN
The keyword OUTER is marked as optional (enclosed in square brackets). In this specific case, whether you specify OUTER or not makes no difference. Note that while the other elements of the join clause is also marked as optional, l...
When to use self over $this?
...o the current
object. Use self to refer to the
current class. In other words, use
$this->member for non-static members,
use self::$member for static members.
Full Answer
Here is an example of correct usage of $this and self for non-static and static member variables:
<?php
class X ...
constant pointer vs pointer on a constant value [duplicate]
...har *const a; you have a, which is a const pointer (*) to a char. In other words you can change the char which a is pointing at, but you can't make a point at anything different.
Conversely with const char* b; you have b, which is a pointer (*) to a char which is const. You can make b point at any ...
How to change a span to look like a pre with CSS?
...te-space: -moz-pre-wrap;
white-space: -pre-wrap;
white-space: -o-pre-wrap;
word-wrap: break-word;
line-height: 1.5;
word-break: break-all;
white-space: pre;
white-space: pre\9; /* IE7+ */
display: block;
}
Used the same here - http://www.makemyshop.in/
...
Is there a naming convention for MySQL?
...my schema, to indicate join tables and (in the case of fields) to indicate word boundaries, so that the _ may be exclusively to indicate a othertable_id (i.e. table name = othertable and field in that table = id). Besides, if the other RDBMS is case insensitive, what does it really matter? I'm neve...