HP C/iX Reference Manual (31506-90011)

178 Chapter10
Using Intrinsics
Intrinsic_file Pragma
Intrinsic_file Pragma
The intrinsic_file pragma specifies the name of the file in which the compiler can
locate information about intrinsic functions. It has the following format:
#pragma intrinsic_file "filename"
where filename is the fully qualified filename of the file you want the compiler to use to
look up information about intrinsics declared using the intrinsic pragma. If you do not
include the group and account name of the file, the compiler looks in the group and account
of the current user.
If you do not use this pragma, the compiler looks in a file called SYSINTR.PUB.SYS by
default. The file SYSINTR.PUB.SYS contains descriptions of all MPE/iX intrinsics. You
only need to use the intrinsic_file pragma if you are building your own intrinsic files
using the HP Pascal/iX compiler and you must specify a file other than the default. Refer to
the HP Pascal Programmer's Guide for information about building your own intrinsic files.
The compiler refers to the specified file until another intrinsic_file pragma is
encountered. To return the search to SYSINTR.PUB.SYS, specify the intrinsic_file
pragma with a null string:
#pragma intrinsic_file
Some examples of intrinsic_file and intrinsic pragmas follow.
#pragma intrinsic FOPEN, FCLOSE, FREAD /* SYSINTR.PUB.SYS used */
#pragma intrinsic_file "MYINTR"
#pragma intrinsic mytest1, mytest2 /* MYINTR.MYGROUP.MYACCT used */
#pragma intrinsic_file ""
#pragma intrinsic FCHECK, FGETINFO /* SYSINTR.PUB.SYS used */
In the first pragma, the compiler searches the default file for information about the FOPEN,
FCLOSE, and FREAD pragmas. The second pragma specifies a different file for the compiler
to search, MYINTR. The third pragma declares two intrinsics, mytest1 and mytest2, that
must be described in MYINTR. The fourth pragma returns the search to SYSINTR, where
FCHECK and FGETINFO descriptions are found.