Fix qsort example for 64bit
Fix qsort example for 64bit

tduehr/ffi,tduehr/ffi,ffi/ffi,MikaelSmith/ffi,mvz/ffi,yghannam/ffi,ffi/ffi,sparkchaser/ffi,ferventcoder/ffi,ferventcoder/ffi,ferventcoder/ffi,majioa/ffi,sparkchaser/ffi,ferventcoder/ffi,tduehr/ffi,yghannam/ffi,sparkchaser/ffi,mvz/ffi,sparkchaser/ffi,MikaelSmith/ffi,MikaelSmith/ffi,mvz/ffi,tduehr/ffi,majioa/ffi,majioa/ffi,yghannam/ffi,ffi/ffi,majioa/ffi,yghannam/ffi,MikaelSmith/ffi,yghannam/ffi,mvz/ffi