c011401
1
2
3
4
5
6
7
8
9
10
11
12
13
C FILE: CALLBACK.F SUBROUTINE FOO(FUN,R) EXTERNAL FUN INTEGER I REAL*8 R Cf2py intent(out) r R = 0D0 DO I=-5,5 R = R + FUN(I) ENDDO END C END OF FILE CALLBACK.F