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

[Lawrence D’Oliveiro]

On Tuesday, June 28, 2016 at 5:37:29 AM UTC+12, Steven Truppe wrote:
> 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 can install 32-bit compatibility libraries on x86-64. Find the libraries with

    apt-cache search 32 | grep '^lib.*32.*bit'