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cnfCptr
- Convert a FORTRAN pointer to a C pointer
- Description:
- Given a FORTRAN pointer, stored in a variable of type
F77_POINTER_TYPE, this function returns the equivalent C
pointer. Note that this conversion is only performed if the C
pointer has originally been registered (using
cnfRegp)
for use
from both C and FORTRAN. All pointers to space allocated by
cnfCalloc
and
cnfMalloc
are automatically registered in this
way.
- Invocation:
- cpointer = cnfCptr( fpointer )
- Arguments:
-
-
F77_POINTER_TYPE fpointer (Given)
-
The FORTRAN pointer value.
- Returned Value:
-
-
void *cnfCptr
-
The equivalent C pointer.
- Notes:
- A NULL value will be returned if the C pointer has not
previously been registered for use from both C and FORTRAN, or
if the FORTRAN pointer value supplied is zero.
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Up: CNF C Routine Descriptions
Previous: cnfCopyf - Copy one FORTRAN string to another FORTRAN string
CNF and F77 Mixed Language Programming -- FORTRAN and C
Starlink User Note 209
P.M. Allan
A.J. Chipperfield
R.F. Warren-Smith
19 January 2000
E-mail:ussc@star.rl.ac.uk