This program converts Fortran 77 code containing special comments from one
version to another. It is used to convert between different
precisions, and to support the special comments used in some of the Fortran
77 codes for input to a program that converts programs from Fortran 77 to
C. Support is provided for precision greater than double for systems
that support such a feature. Support is provided for conversion
between real programs and integer or complex versions of a program, and
also partial double precision and partial quadruple precision. Most
MATH77 codes contain the comments only for conversion between the single
and double precision cases. Although designed for use with MATH77
codes, it can be used in other applications that want a portable means to
support multiple versions. Any version of a code can be used as
input for the purpose of getting another version.
This software is part of the MATH77/mathc90 collection here.