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Formatting and I/O Library Chapter 2
LabWindows/CVI Standard Libraries 2-18 © National Instruments Corporation
GetFmtErrNdx
int
n
=
GetFmtErrNdx
(
void
);
Purpose
Returns the zero-based index into the format string where an error occurred in the last formatting
or scanning call.
Parameters
None
Return Value
n
integer Position of error in format
string.
Return Code
-1
No error.
Using This Function
If the format string of the preceding call contains an error, such as an invalid format, or
inappropriate modifier, the return value indicates the position within the format string, beginning
with position zero, where the error was found. The function can report only one error per call,
even if several errors existed within the string.
Example
int i, n;
Scan ("1234", "%s>%d", &i);
n = GetFmtErrNdx ();
/* n will have the value -1, indicating that */
/* there was no error found in the format string. */
GetFmtIOError
int
status = GetFmtIOError
(void);
Purpose
This function returns specific I/O information for the last call to a Formatting and I/O function
that performs file I/O. If the last function was successful,
GetLastFmtIOError
returns zero (no