Re: anybody knows an apache-license-compatible impl of Integer.parseInt?

2009-02-11 Thread Steve Loughran 

Zheng Shao wrote:

We need to implement a version of Integer.parseInt/atoi from byte[] instead of 
String to avoid the high cost of creating a String object.

I wanted to take the open jdk code but the license is GPL:
http://www.docjar.com/html/api/java/lang/Integer.java.html

Does anybody know an implementation that I can use for hive (apache license)?


I also need to do it for Byte, Short, Long, and Double. Just don't want to go 
over all the corner cases.


Use the Apache Harmony code
http://svn.apache.org/viewvc/harmony/enhanced/classlib/branches/java6/modules/

anybody knows an apache-license-compatible impl of Integer.parseInt?

2009-02-10 Thread Zheng Shao 
We need to implement a version of Integer.parseInt/atoi from byte[] instead of 
String to avoid the high cost of creating a String object.

I wanted to take the open jdk code but the license is GPL:
http://www.docjar.com/html/api/java/lang/Integer.java.html

Does anybody know an implementation that I can use for hive (apache license)?


I also need to do it for Byte, Short, Long, and Double. Just don't want to go 
over all the corner cases.

Solutions from c/c++ are OK (as long as the license does not conflict). I can 
translate it.

Zheng

Re: anybody knows an apache-license-compatible impl of Integer.parseInt?

2009-02-10 Thread Min Zhou 
Hey zheng,

Maybe you can try ragel ,which can compile very effective codes for your fsm
from regex.  The atoi function produced by ragel can run faster than
glibc's. It also targets java.
http://www.complang.org/ragel/

On Wed, Feb 11, 2009 at 4:18 AM, Zheng Shao zs...@facebook.com wrote:

 We need to implement a version of Integer.parseInt/atoi from byte[] instead
 of String to avoid the high cost of creating a String object.

 I wanted to take the open jdk code but the license is GPL:
 http://www.docjar.com/html/api/java/lang/Integer.java.html

 Does anybody know an implementation that I can use for hive (apache
 license)?


 I also need to do it for Byte, Short, Long, and Double. Just don't want to
 go over all the corner cases.

 Solutions from c/c++ are OK (as long as the license does not conflict). I
 can translate it.

 Zheng



Cheers,
Min Zhou
-- 
My research interests are distributed systems, parallel computing and
bytecode based virtual machine.

http://coderplay.javaeye.com