Intel® Fortran Compiler Classic and Intel® Fortran Compiler Developer Guide and Reference
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Visible to Intel only — GUID: GUID-6C969E35-FE52-405F-AB79-34E2C73EDFBD
Visible to Intel only — GUID: GUID-6C969E35-FE52-405F-AB79-34E2C73EDFBD
ATTRIBUTES ALLOW_NULL
The ATTRIBUTES directive option ALLOW_NULL enables a corresponding dummy argument to pass a NULL pointer (defined by a zero or the NULL intrinsic) by value for the argument.
!DIR$ ATTRIBUTES ALLOW_NULL :: arg
arg |
Is the name of the argument. |
ALLOW_NULL is only valid if ATTRIBUTES REFERENCE is also specified; otherwise, it has no effect.