大约有 848 项符合查询结果（耗时：0.0154秒） [XML]
Swift Beta performance: sorting arrays
...uage, making it potentially unsafe. This is what Apple states in the Xcode 5.0 release notes:
A new optimization level -Ofast, available in LLVM, enables aggressive optimizations. -Ofast relaxes some conservative restrictions, mostly for floating-point operations, that are safe for most code. It...
Multiple working directories with Git?
...are_repository() and core.bare configuration variable", 2007-01-07, Git v1.5.0-rc1) and updated in e90fdc3 ("Clean up work-tree handling", 2007-08-01, Git v1.5.3-rc4).
This solves the "git branch -D <name>" problem described above.
However... If a repository has core.bare=1 but the "git" co...
How to decide between MonoTouch and Objective-C? [closed]
...
Yes! Also, some of the new C# 5.0 features make coding all that more fun compared to objective-c.
– harsimranb
Jan 25 '14 at 0:17
...
What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
...
Linux kernel 5.0 source comments
I knew that x86 specifics are under arch/x86, and that syscall stuff goes under arch/x86/entry. So a quick git grep rdi in that directory leads me to arch/x86/entry/entry_64.S:
/*
* 64-bit SYSCALL instr...
UnicodeDecodeError when redirecting to file
...n 2.7.6 (default, Nov 15 2013, 15:20:37)
[GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.2.79)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> print sys.stdout.encoding
UTF-8
If your input characters can be encoded with the ter...
SQL injection that gets around mysql_real_escape_string()
...nd so this attack would still succeed. The bug was fixed in MySQL 4.1.20, 5.0.22 and 5.1.11.
But the worst part is that PDO didn't expose the C API for mysql_set_charset() until 5.3.6, so in prior versions it cannot prevent this attack for every possible command!
It's now exposed as a DSN parameter...
Scala: Abstract types vs generics
...on for values, and member abstraction for operations.
The more recent Java 5.0 with generics supports parameterization also for types.
The arguments for including generics in Scala are two-fold:
First, the encoding into abstract types is not that straightforward to do by hand. Besides the loss...
Understanding __get__ and __set__ and Python descriptors
...m using Python 3; for python 2 you need to make sure those divisions are / 5.0 and / 9.0). That gives:
100.0
32.0
Now there are other, arguably better ways to achieve the same effect in python (e.g. if celsius were a property, which is the same basic mechanism but places all the source inside the...
Fastest way to iterate over all the chars in a String
...rAt 77.0 72.0 462.0 584.0 127.5 89.5 86.0 159.5 165.0
2 charAt 38.0 36.5 284.0 32712.5 57.5 48.3 50.3 89.0 91.5
4 charAt 19.5 18.5 458.6 3169.0 33.0 26.8 27.5 54.1 52.6
8 charAt 9.8 9.9 100....
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
....sql建立数据库
由于extman版本较早，其sql脚本是针对mysql-5.0的，对于现在mysql-5.5的语法稍有不适用
因此编辑extmaul.sql 将“TYPE=MyISAM”全部改为“ENGINE=MyISAM”，修改之后使用该脚本建立数据库
mysql -uroot -p < extmail.sql
mysql -uroot -p...