Sun Studio 12 Update 1: Fortran User's Guide

5.1 Compatible f77 Features

f95 accepts the following non-standard features of the FORTRAN 77 compiler, f77, either directly or when compiling in -f77 compatibility mode:

Source Format


Data Types, Declarations, and Usage:

Programs, Subroutines, Functions, and Executable Statements:


For details on the syntax and semantics of non-standard language extensions, see the FORTRAN 77 Language Reference at