craig@fractal.eng.buffalo.edu (Craig Steinberger) (02/28/90)
Has anyone have any experience in using C system subroutines in FORTRAN? What I am trying to do is use the clock(3) routine in order to time an algorithm, but I don't know how to do it. (Yes I know I can use prof, but that isn't adequate for various reasons. ) I am using a Sun 4/150 running SunOs 4.0.3 Thanks -Craig ----- Transcendentalism is all very fine, | Craig Steinberger but how does that relate to what | SUNY at Buffalo, Aerospace Engineering You see in the subway? | craig@fractal.eng.Buffalo.edu
craig@acsu.Buffalo.EDU (Craig Steinberger) (02/28/90)
Robert Howard was kind enough to show me how to use a C subroutine in a
FORTRAN program (see my earlier question). To do this, one must write
a C program to "drive" the subroutine. For example, if I wanted to use
the clock() C routine, I would write a C program as follows:
timer_() {
return(clock());}
(The key is to put an underscore after the C routine name)
I would then call this from the FORTRAN program like a FORTRAN
function.
Transcendentalism is all very fine, | Craig Steinberger
but how does that relate to what | SUNY at Buffalo, Aerospace Engineering
You see in the subway? | craig@fractal.eng.Buffalo.edu