HP SunSoft Pascal 4.0 The %include Directive

A

Comments

expression consists of a conditional variable and the optional boolean operators and, or, and not. See the %else listing for examples of expression.

%ifdef is especially useful for determining whether or not a conditional variable has been declared in an include file.

Example

See the example in “The %elseifdef Directive.”

	The %include Directive
	The %include directive inserts lines from the specified file in the input
	stream.
	Syntax
	%include 'filename';
	Comments
	When cppas encounters the %include directive, it inserts the lines from the
	file name into the input stream.
	Example
The program unit,
	program include_prog;
include_prog.p
	%include 'extern.h';
	begin
	global := 1;
	writeln('From MAIN, before PROC: ',global);
	proc;
	writeln('From MAIN, after PROC: ',global);
	end. { include_prog }

Pascal Preprocessor 259