HP 3000 Manuals HP 3000 Manuals
OS
OS is an HP Pascal Option.
The OS compiler option specifies the operating system on which the
program is intended to run (not to be confused with the operating system
on which it is compiled). Then, the compiler identifies language
features that are not available on that operating system.
Syntax
{NONE }
{HPUX }
$OS ' {MPE/XL}'$
{MPEXL }
{MPE }
Parameters
NONE The compiler identifies language features that are
unavailable on the HP-UX operating system or the MPE/iX and
MPE V operating systems.
Available features are:
All ANSI Pascal features.
All HP Standard Pascal features.
All HP Pascal predefined routines.
HPUX The compiler recognizes language features that are
available on the HP-UX operating system.
Available features are:
All ANSI Pascal features.
All HP Standard Pascal features.
All HP Pascal predefined routines.
Predefined procedure assert.
Predefined function baddress.
Predefined function bitsizeof.
Predefined function fnum.
Predefined function sizeof.
Predefined function waddress.
Standard program parameter stderr.
MPE/XL or The compiler recognizes language features that are
MPEXL available on the MPE/iX operating system.
Available features are:
All ANSI Pascal features.
All HP Standard Pascal features.
All HP Pascal predefined routines.
Predefined procedure assert.
Predefined function baddress.
Predefined function bitsizeof.
Predefined function fnum.
Predefined function sizeof.
Predefined function waddress.
Predefined function ccode.
RUN command parameter INFO.
RUN command parameter PARM.
MPE The compiler recognizes language features that are
available on the MPE V operating system.
Available features are the same as for MPE/iX.
Default Operating system on which the compiler is running.
Location Anywhere.
If the compiler encounters a language feature that is unavailable on the
intended operating system, it issues an error.
If you are writing a program on one operating system and intend to run it
on another operating system, use the OS option to recognize language
features that are available on the intended system.
Example
PROGRAM prog;
VAR
condcode : 0..2;
.
.
.
BEGIN
$OS 'MPE'$
condcode := ccode; {this is legal}
.
.
.
$OS 'NONE'$
condcode := ccode; {this is a compile-time error}
END.