Where do i find the 32 bit libraries on my 64 bit ubuntu system

[Rustom Mody]

On Monday, June 27, 2016 at 11:07:29 PM UTC+5:30, Steven Truppe wrote:
> Hi all,
> 
> i want to write an application that works for both 32 bit and 64bit on 
> my 64bit ubuntu system, my problem i only find 64bit libraries under 
> /usr/lib, there is also a path callled /x86_64-linux-gnu/ <- are these 
> the libraries i should use for 32 bit and 64 bit programming ??

You probably need to study about multiarch:
https://help.ubuntu.com/community/MultiArch
https://wiki.debian.org/Multiarch/

[Dont know much more myself]