1! Program to test the INDEX intrinsic
2program test
3  character(len=10) a
4  integer w
5  if (index("FORTRAN", "R") .ne. 3) STOP 1
6  if (index("FORTRAN", "R", .TRUE.) .ne. 5) STOP 2
7  if (w ("FORTRAN") .ne. 3) STOP 3
8end
9
10function w(str)
11  character(len=7) str
12  integer w
13  w = index(str, "R")
14end
15
16