distinguishing between 32 bit and 64 bit OS's

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distinguishing between 32 bit and 64 bit OS's

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06-12-2006

hirandhir

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Join Date: Jun 2006

Posts: 1

distinguishing between 32 bit and 64 bit OS's

I have a C application which is to be supported on AIX, Solaris and HPUX.
There are chunks of code which need to #ifdef'd for 64 bit OS's only, i.e., I need these code to be executed only for 64 bit OS's on all the three platforms.
Can someone guide me how to do this. I tried using #ifdef _LP64 but it doesn't seem to work.

thanks,
hirandhir

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