[2788] in java-interest
Re: Returning new instances of ArrayOf(s) from C
daemon@ATHENA.MIT.EDU (Thomas Ball)
Fri Oct 13 16:59:34 1995
Date: Fri, 13 Oct 1995 11:43:18 -0700
From: Thomas.Ball@Eng.Sun.COM (Thomas Ball)
To: root@cyberpunk.com
Cc: java-interest@java.Eng.Sun.COM
> Hiya All,
>
> After digging through the code for makeJavaString I decided to write
> something called makeHArrayOfInt (basically return int[] to java from c). I believe I
> am using the write Alloc however the int arrays body field is a long*...
> whichseems to not like memsets memcpys etc... Exactly how does one return an array
> of ints through c without having to be given one. Thanks in advance
This should do it:
#include <native.h>
HArrayOfInt *MyClass_makeHArrayOfInt(HMyClass * this, long num)
{
HArrayOfInt *ret;
ArrayOfInt *val;
int i;
ret = (HArrayOfInt *) ArrayAlloc(T_INT, num);
if (ret == 0) {
SignalError(0, JAVAPKG "OutOfMemoryError", 0);
return NULL;
}
val = (ArrayOfInt *)unhand(ret);
for (i = 0; i < (int)num; i++) {
val->body[i] = i;
}
return ret;
}
Tom Ball
Java Products Group
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