[R] R as 64 bit application

Thomas Lumley tlumley at u.washington.edu
Thu May 15 18:09:01 CEST 2003

On Thu, 15 May 2003, Paul Gilbert wrote:

> In a package test I have a problem that needs over 4G of memory. This
> requires that I use R compiled as a 64 bit application. Is there a way
> within R to test if R has been compile as a 64 bit application? This
> would allow me to automatically skip the test when I know it is going to
> fail.

I don't think so.  You could use a simple C function

  void is64bit (int *sizeptr){
	*sizeptr = sizeof sizeptr ==8;



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