How to find the cpu architecture using C++ in Linux?

i am trying to find the architecture of a processor,i.e x64/x86, using c++. OS is Linux.

i would appreciate any help from u guys..

thanks.

Is this related to C++? By the way, try the command uname. Check the man pages for the various options. Also, for further CPU info look into /proc/cpuinfo.

i need to do that thru' some code and moreover i tried that /proc/cpuinfo but it has no information about cpu architecture..

and if you know how to execute a command and get the result using c++ that'll also be very helpful..

thanks for the reply..

What does uname -all give? I cannot look at the man right now. But see if there is an API that helps with that or you could simply make a system call.