大约有 31,000 项符合查询结果（耗时：0.0508秒） [XML]
How to set JAVA_HOME environment variable on Mac OS X 10.9?
...nd reopen it? Also, does this permanently add the environment variable for my jdk?
– islander_zero
Apr 3 '14 at 15:57
1
...
Python hashable dicts
As an exercise, and mostly for my own amusement, I'm implementing a backtracking packrat parser. The inspiration for this is i'd like to have a better idea about how hygenic macros would work in an algol-like language (as apposed to the syntax free lisp dialects you normally find them in). Because...
Tool to track #include dependencies [closed]
... When working in VS, I think this is the quickest solution to solve my problem~ :-)
– yaobin
May 22 '13 at 6:08
...
Context switches much slower in new linux kernels
...t least per the documentation of the option), or disable it completely. On my box it is completely disabled (i.e., displaying the current_driver file in /sys/devices/system/cpu/cpuidle produces an output of none). In this case the second boot option, processor.max_cstate=0 is unnecessary. However, t...
Error 1046 No database Selected, how to resolve?
...
You need to tell MySQL which database to use:
USE database_name;
before you create a table.
In case the database does not exist, you need to create it as:
CREATE DATABASE database_name;
followed by:
USE database_name;
...
Avoiding “resource is out of sync with the filesystem”
...
A few of my imports were corrupt after this, but a quick Organise Imports fixed that too.
– z0r
Jun 6 '14 at 0:02
...
visual studio not remembering open documents & startup project
For the past week, something has changed about my VS solution, and I havent found a setting to fix it yet.
16 Answers
...
how to rotate a bitmap 90 degrees
...ust wondering if I do Bitmap newBitmap = RotateBitmap(oldBitmap, 90), does my 'decoded bitmap' has two memory blocks (for old and new) or are they referring to the same memory, but one is having no rotation, other having rotation?.... My concern is, if I decode R.drawable.picture into oldBitmap, if...
How do I make a redirect in PHP?
...
Summary of existing answers plus my own two cents:
1. Basic answer
You can use the header() function to send a new HTTP header, but this must be sent to the browser before any HTML or text (so before the <!DOCTYPE ...> declaration, for example).
header...
Specifically, what's dangerous about casting the result of malloc?
...st to prevent this error is mostly the same reasoning as writing
if (0 == my_var)
instead of
if (my_var == 0)
since the latter could lead to a serious bug if one would confuse = and ==, whereas the first one would lead to a compile error. I personally prefer the latter style since it better re...