DataBlade API Programmer's Manual
Chapter 12: DataBlade API Function Descriptions
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mi_fp_argisnull()
The
mi_fp_argisnull()
accessor function gets the value of the
fp_argisnull[arg]
field of an associated
MI_FPARAM
structure.
Syntax
mi_unsigned_char1 mi_fp_argisnull(
fparamPtr, arg
)
MI_FPARAM *fparamPtr;
mi_integer arg;
fparamPtr
is a pointer to the associated
MI_FPARAM
structure.
arg
is the associated argument.
Valid in Client Application?
Valid in Server Routine?
Yes
Yes
Usage
The
fp_argisnull
array contains null indicators for the routine arguments. If the
nth
argument is
NULL
,
fp_argisnull[n-1]
equals
MI_TRUE
.
Return Values
The value stored in the
fp_argisnull[null]
field of the input
MI_FPARAM
structure.
Related Topics
For additional information, see the descriptions of the following functions:
mi_fp_arglen()
,
mi_fp_argprec()
,
mi_fp_argscale()
, and
mi_fp_argtype()
.
DataBlade API Programmer's Manual
, version 9.1
Copyright © 1998, Informix Software, Inc. All rights reserved.
