HP 3000 Manuals HP 3000 Manuals
Chapter 5 USING KSAM FILES IN FORTRAN
PROGRAMS
OVERVIEW
The FORTRAN language has no input/output statements that can be used to
access or create a KSAM file directly. In order to reference KSAM files
for input or output, the FORTRAN progammer can choose between using MPE
file system intrinsics (as described in section IV) or using COBOL
procedures (described in section III). He can create a KSAM file with the
KSAMUTIL utility program (described in section II) or with a call to the
FOPEN intrinsic, but not with a COBOL procedure.
If you are programming in FORTRAN, you can use the CALL statement to call
any of the COBOL procedures or any of the file system intrinsics that
access KSAM files. In order to determine which to use, you should refer
to Table 3-1 for a list of the COBOL procedures that provide KSAM
interface and to Table 4-1 for a similar list of the file system
intrinsics used for KSAM interface. You will note that there are
differences in the functions provided.
Since the COBOL procedures are described in detail in section III and the
file system intrinsics are described in detail in section IV, these
descriptions are not repeated here. This section merely describes how to
call the COBOL procedures or the file system intrinsics, and provides
examples of file creation and access along with brief commentaries.