FORTRAN Reference Manual

Compiler Directives
FORTRAN Reference Manual—528615-001
10-4
Using Compiler Directives
Using Compiler Directives
The general form for compiler directives is:
?
in the first column of a source line designates that it is a compiler directive line.
directive
is one of the compiler directives described in this section.
Considerations
•
FORTRAN ignores blanks in compiler directives, except within quoted strings.
•
You can specify more than one directive per line. Separate directives with commas.
•
You can continue directives that have a parameter list over multiple lines. The
break in the parameter list can occur between parameters anywhere after the
opening parenthesis. The continuation line must also begin with a question mark in
column one. For example:
?ERRORS 100, FMAP, SOURCE (file1, file2,
?file3)
•
You can use an equal sign (=) between any directive or option keyword and its
numeric value, but it is not required. For example, ?DATAPAGES = 64 and
?DATAPAGES 64 are equivalent.
•
You can use decimal or octal notation for all directives and options that require
numeric values.
Observe the following restrictions in the placement of compiler directives:
SUPPRESS Lists only error messages and compilation statistics; overrides LIST.
Default is NOSUPPRESS.
SYMBOLS Includes a symbol table in the object file for use by Inspect. Default
is NOSYMBOLS.
SYNTAX Searches source file for syntax errors; does not produce object file.
UNIT Causes a unit to exist; declares the properties of the file or files
connected to the unit.
WARN Lists warning messages regardless of the LIST setting. Default is
WARN.
? directive [, directive ]...
Table 10-1. Summary of Compiler Directives (page 4 of 4)
Directive Action