Interface Definition Files (IDFs) for CPI-C Calls

IDFs (also called pseudonym files or headers) for the CPI Communications calls are provided as described below. The IDFs define calls, parameters, and variable values.

As shown in Table 1, the CPI-C IDFs provided by APPC/MVS are not named according to the CPI-C file names, which are described in CPI-C Reference. IBM recommends that you rename IDFs to the CPI-C name when you place the IDF in a high-level language macro library.

APPC/MVS provides the following IDFs:

Table 1. IDFs Provided by APPC/MVS for CPI-C Calls
Language	In Member	CPI-C file name
C	ATBCMC in SYS1.SIEAHDR.H	CMC
COBOL	ATBCMCOB in SYS1.SIEAHDR.H	CMCOBOL
FORTRAN	ATBCMFOR in SYS1.SIEAHDR.H	CMFORTRN
PL/I	ATBCMPLI in SYS1.SIEAHDR.H	CMPLI
REXX	ATBCMREX in SYS1.SIEAHDR.H	CMREXX
RPG	ATBCMRPG in SYS1.SIEAHDR.H	CMRPG

The ATBCMC IDF is also shipped in the z/OS UNIX System Services HFS directory /usr/include.

The CSP interface definition file CMCSP COPY is shipped by Cross System Product, Release 3.3.0 and above.