class in fortran 90/95?

[erheiqin]

Ihave two questions here:

(1)is therea class type style as in C++ in fortran, so that I can group some data type variables and functions together?

(2) is there any function pointer in fortran ?

If not, any suggestions on how to do it?

Thanks,

Emmy

[garyscott]

1) Not by name. Some competing products such as from Lahey have class extensions from the Fortran 2003 standard. You might in some cases be able to sove the problem adequatelyusing derived types and modules.

2) Not until Fortran 2003, however some current compilershavesuch extensions.

[Steven_L_Intel1]

Intel Fortran supports function pointers, though not using F2003 syntax.

You can do some class-like things with generics and defined operators. I've seen some good attempts at doing OO programming with Fortran.

[Jugoslav_Dujic]

Fortran-9x is not an OO language, although many concepts can be used/emulated. Check out this list of articles. (Decyk/Norton/Szymanskiare the most prolific authors in this field, so I suggest checkingtheir articles first)

CVF/IVF have pointers-to-functions as an extension (not compatible with future F2003 standard). Check out e.g. MAPI module+sample on my home page to see how it's implemented.

Jugoslav