🚀 go-pugleaf

Hi,

I'm working on some large data sets (+100Meg), and GNUC has solved
most of my problems in that I can allocate enough memory to hold the
entire file. However, when swapping to disk begins, the entire process
infinitely slows down. Knowing that my PC has 32meg of RAM, and that
about 2 meg is already used, I now allocate a +/- 28meg array, block
read 28meg from file and process. Once that's finished I write to file
and read in the next 28meg block.

My question:

Is there any way to find out the size of the available free memory 
(including base and extended and all that) ??

I want to automate this process of memory allocation such as:

FreeMem = FindAllFreeMemory();
FreeMem *= 0.9  /* Leave 10% of memory for safety */
char *array = malloc( (long) FreeMem );

so that the programs can run on machines with any amount of RAM, and
automatically detect how large the array may be so as to aviod disk
swapping.

Thanx in advance,
Pete.