The $DISPLAY statement displays a message on the standard output device during compilation, or includes a version number in
the object. There are two formats.
Format 1
$DISPLAY text-data
Format 2
$DISPLAY VCS = version-number
Syntax
The entire $DISPLAY statement must appear on a single line.
General Rules
- If a $DISPLAY statement is encountered on a source line that is ignored by conditional compilation, there is neither a compile-time
nor a runtime effect.
Format 1
- Text-data is displayed on the standard output device during compilation. There is no run-time effect.
Format 2
- Version-number is the content of the entire source line following the "=", excluding leading and trailing spaces.
- The character string formed by concatenating "@(#)", version-number, and a null character (binary zero) is included in the
object file. If version-number begins with the characters "@(#)", the compiler does not concatenate these characters when
forming the character string. In other words, only a single "@(#)" will be included in the object file, whether version-number includes that string or not.
Note: version-number can be any text string, but it is intended to contain a version number for which a pattern matching tool, such as the UNIX
sccs what command, can search the object file.