Re: Program in 32-bit, run on 64-bit OK?

From:
=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>
Newsgroups:
comp.lang.java.programmer
Date:
Wed, 14 Nov 2012 12:14:56 -0500
Message-ID:
<50a3d194$0$289$14726298@news.sunsite.dk>
On 11/14/2012 12:11 PM, Cholo Lennon wrote:

On 14/11/2012 11:12, Arne Vajh?j wrote:

On 11/14/2012 8:58 AM, sl@exabyte wrote:

I am too sure on this.

I am preparing to install OpenSuse v10 32-bit on my pc. This pc is for
testing my C programs, which will eventually be transferred to my
internet
host which is running the 64-bit version.

Can my programs run ?

Off my head I think they should, but the reverse may not. Please
correct me.

Do I have to pick the correct compiler ?


Pure Java:

                  Run with 32 Run with 64
Build with 32 yes yes
Build with 64 yes yes

Pure C:

                  Run on 32 Run on 64
Build for 32 yes yes
Build for 64 no yes

Mix of Java and C via JNI:

                  Run on/with 32 Run on/with 64
Build for 32 yes no


The OP can still run a 32-bit JNI java/C application on 64-bit: He/She
just needs to use a 32-bit JVM.


Yes.

What do you think "with 64" meant?

Build for 64 no yes


Arne

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