• Post Reply Bookmark Topic Watch Topic
  • New Topic

JNI + Error

 
chatterjee_parth
Greenhorn
Posts: 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi ,
I am trying to use jni for making a call to a existing C function thru Java
Now I have started to learn the same .
I have written a small java program called NativeApp.java :- source code is
--------------------------------------------------
class NativeApp {
public static void main(String[] args){
if (args.length!=1){
System.out.println("Usage:java NativeApp n");
System.exit(0);
}
int n = new Integer(args[0]).intValue();
int answer=new Native().fibonacci(n);
System.out.println(answer);
}
}
--------------------------------------------------
and the corrosponding Native Class Souce code is :-
--------------------------------------------------
class Native
{
public native int fibonacci(int n) ;
static
{
System.loadLibrary("Native");
}
}
--------------------------------------------------
Then I have used the javah -jni Native Command to make the header file.(Successful)
My Os is Solaris and the jdk is 1.2 .
When I try to make the shared library using the following commnad :-
--------------------------------------------------
cc -G -I/fullpath of directory/taxware -I/java/jdk1.1.8/include -I/java/jdk1.1.8/include/solaris NativeImp.c -o Partha.so
--------------------------------------------------
however this gives a error
--------------------------------------------------
Warning: Option -YP,:/usr/ucblib:/opt/SUNWspro/WS6U2/bin/../lib:/opt/SUNW
spro/WS6U2/bin:/usr/ccs/lib:/usr/lib passed to ld, if ld is invoked, ignored oth
erwise
"/user1/xpd2/taxware/jni_md.h", line 24: warning: signed is a keyword in ANSI C
"/user1/xpd2/taxware/jni_md.h", line 24: syntax error before or at: char
"/user1/xpd2/taxware/jni.h", line 107: syntax error before or at: jbyte
"/user1/xpd2/taxware/jni.h", line 107: cannot recover from previous errors
--------------------------------------------------
Can Someone please help me out ?
Thanking you in Anticipation
Partha
 
Michael Ernest
High Plains Drifter
Sheriff
Posts: 7292
Netbeans IDE VI Editor
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
It would help to see the C code that was generated, since this is a C compiler error that you're getting.
I'll move this over the Other APIs, since it's not related to distributed computing.
 
Rob Ross
Bartender
Posts: 2205
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
chatterjee_parth,
like Michael said, this looks like a C compiler error, so I can't be of much help. Sorry.
Also, your name is almost keeping with our JavaRanch naming standards, but not quite; if you replaced the underscore "_" with just a space you would be fine.
Please change your name to comply with the naming policy to which you agreed when you registered here..

For your publicly displayed name,
use a first name, a space, and a last name.

You can change your name here:
here

You can also find the naming policy here:
http://www.javaranch.com/name.jsp
Thank You!
 
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!