Note: Each directive name is preceded by the prefix cDEC$; for example, cDEC$ ALIAS. The c can be a c, C, !, or *.
| Name | Description |
|---|---|
| ALIAS | Specifies an alternate external name to be used when referring to external subprograms. |
| ATTRIBUTES | Applies attributes to variables and procedures. |
| DECLARE | Generates warning messages for undeclared variables. |
| DEFINE | Creates a variable whose existence can be tested during conditional compilation. |
| ELSE | Marks the beginning of an alternative conditional-compilation block to an IF directive construct. |
| ELSEIF | Marks the beginning of an alternative conditional-compilation block to an IF directive construct. |
| ENDIF | Marks the end of a conditional-compilation block. |
| FIXEDFORMLINESIZE | Sets fixed-form line length. This directive has no effect on freeform code. |
| FREEFORM | Uses freeform format for source code. |
| IDENT | Specifies an identifier for an object module. |
| IF | Marks the beginning of a conditional-compilation block. |
| IF DEFINED | Marks the beginning of a conditional-compilation block. |
| INTEGER | Selects default integer size. |
| IVDEP | Assists the compiler's dependence analysis. |
| MESSAGE | Sends a character string to the standard output device. |
| NODECLARE | (Default) Turns off warning messages for undeclared variables. |
| NOFREEFORM | (Default) Uses standard FORTRAN 77 code formatting column rules. |
| NOSTRICT | (Default) Disables a previous STRICT directive. |
| OBJCOMMENT | Specifies a library search path in an object file. |
| OPTIONS | Controls whether fields in records and data items in common blocks are naturally aligned or packed on arbitrary byte boundaries. |
| PACK | Specifies the memory starting addresses of derived-type items. |
| PSECT | Modifies certain characteristics of a common block. |
| REAL | Selects default real size. |
| STRICT | Disables Visual Fortran features not in the Fortran 90 Standard. |
| SUBTITLE | Prints the specified subtitle on subsequent pages of the source listing. |
| TITLE | Prints the specified title on subsequent pages of the source listing. |
| UNDEFINE | Removes a symbolic variable name created with the DEFINE directive. |
| UNROLL | Tells the compiler's optimizer how many times to unroll a DO loop. |
For more information on using these directives, see General Compiler Directives.