2 Apr
2008
2 Apr
'08
9:59 p.m.
On Wed, Apr 2, 2008 at 11:37 PM, Stephen Nuchia <snuchia@statsoft.com> wrote:
Does #ifdef around #pragma omp indeed work? At least #define PARALLEL #pragma omp and using PARALLEL does not work.
I think the above may clash with either the definition or an implementation of #pragma; I can't recall ever successfully using a macro that expands to any directive. But that could be because I haven't tried it in the last twenty years :-)
I do not think that there is any way for a macro to expand to a directive. Except that C99 has _Pragma that can be used in macros. I do not know how many c++ compilers support it nor if it actually works with OpenMP. -- gpd