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Why would you use an ivar?
...d by the compiler may involve another C function call to the functions objc_getProperty/objc_setProperty, as these will have to retain/copy/autorelease the objects as needed and further perform spinlocking for atomic properties where necessary. This can easily get very expensive and I'm not talking ...
How to create a new database after initally installing oracle database 11g Express Edition?
...a batch file (ex. createOraDbWin.bat). Change the parameter values like app_name, ora_dir etc., Run the file with administrative privileges. The batch file creates a basic oracle database:
Note : May take much time (say around 30mins)
REM ASSUMPTIONS
rem oracle xe has been installed
rem oracle_ho...
Is there a way to make GHC provide the type class constraints of typed holes?
...ing, this isn't immediately obvious in GHCi. With your example,
> show _
<interactive>:7:6: error:
• Found hole: _h :: ()
Or perhaps ‘_h’ is mis-spelled, or not in scope
• In the first argument of ‘show’, namely ‘_h’
In the expression: show _h
I...
MongoDB仿关系型数据库Group聚合例子 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...数据
Dictionary dic = new Dictionary();
dic["_userName"] = ""; // 与原字段名区分开
dic["_date"] = "";
dic["_data"] = "0";
MongoServer server = new MongoClient(MongoConnStr).GetServer();
MongoDatabase db = serve...
Visual Studio 2013 Update 4【VS2013 SP4 旗舰版下载地址】 - 更多技术 - ...
...(Chinese-Simplified)：7255 MB
发布日期： 2014/11/12
文件名： cn_visual_studio_ultimate_2013_with_update_4_x86_dvd_5935081.iso
语言： Chinese - Simplified
SHA1：5F924E3B8F6715F92DCD2F8E58558833D310A146
http://download.microsoft.com/do ... s2013.4_ult_chs.iso
Visual Studio Ultima...
Visual Studio 2013 Update 4【VS2013 SP4 旗舰版下载地址】 - 其他 - 清泛...
...(Chinese-Simplified)：7255 MB
发布日期： 2014/11/12
文件名： cn_visual_studio_ultimate_2013_with_update_4_x86_dvd_5935081.iso
语言： Chinese - Simplified
SHA1：5F924E3B8F6715F92DCD2F8E58558833D310A146
http://download.microsoft.com/do ... s2013.4_ult_chs.iso
Visual Studio Ultima...
Odd behavior when Java converts int to byte?
...
132 in digits (base 10) is 1000_0100 in bits (base 2) and Java stores int in 32 bits:
0000_0000_0000_0000_0000_0000_1000_0100
Algorithm for int-to-byte is left-truncate; Algorithm for System.out.println is two's-complement (Two's-complement is if leftmos...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...ssembly from gcc-4.6.4 -Os (executes in 0.709 secs):
00000000004004d2 <_ZL3addRKiS0_.isra.0>:
4004d2: 8d 04 37 lea eax,[rdi+rsi*1]
4004d5: c3 ret
00000000004004d6 <_ZL4workii>:
4004d6: 41 55 push r13
4...
When should I use nil and NULL in Objective-C?
...ntions this, but if you dig into objc.h, you'll find the line #define nill __DARWIN_NULL.
– gkb0986
Oct 25 '13 at 3:12
1
...
How do I get the real .height() of a overflow: hidden or overflow: scroll div?
...
Use the .scrollHeight property of the DOM node: $('#your_div')[0].scrollHeight
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