F77_BLANK_COMMON

Refer to blank common

Description:

Expands to the external name of blank common on the computer in use. This is used in declaring an external structure in C that overlays the FORTRAN blank common block.

Invocation

F77_BLANK_COMMON

Examples:

F77_BLANK_COMMON
will expand as follows:
All Unix _BLNK__
VAX/VMS: $BLANK
extern struct { int i,j,k;} F77_BLANK_COMMON;
declares an external structure to use the same storage as the FORTRAN blank common.
F77_BLANK_COMMON.i
refers to component i of the above structure.