Determine physical mem size programmatically on OSX

Question

We\'re trying to find out how much physical memory is installed in a machine running Mac OS X. We\'ve found the BSD function sysctl(). The problem is this function wants to

Answer 1

Did you try googling?

This seems to be the answer: http://lists.apple.com/archives/scitech/2005/Aug/msg00004.html

sysctl() does work, you just need to fetch hw.memsize instead of hw.physmem. hw.memsize will give you a uint64_t, so no 32 bit problem.