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

Alternatively you can add the data from vm_statistics_data_t to get the total memory

vm_statistics_data_t vm_stat;
int count = HOST_VM_INFO_COUNT;
kern_return_t kernReturn = host_statistics(mach_host_self(), HOST_VM_INFO, (integer_t*)&vm_stat, (mach_msg_type_number_t*)&count);