Trying to work with subroutines (I am a MATLAB person without fortran and julia knowledge)
File Name : fsbrtn.f90
SUBROUTINE MULTIPLY(A,B,C)
DOUBLE PRECISION A,B,C
C = A*B
RETURN
END
gfortran -shared -O2 fsbrtn.f90 -fPIC -o fsbrtn.so
a = 100.0
b = 10.0
c = 1.0
ppmm = ccall((:multiply_, "/home/juser/ManUTD/fortran_try/fsbrtn"),
Void,(Ptr{Float64},Ptr{Float64},Ptr{Float64}),&a,&b,c)
println(c)
Output
1.0
Where am I going wrong?
ergerg
