Fnum, Fnum32(3fml)


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Fnum, Fnum32(3fml)

Name

Fnum(), Fnum32() - return count of all occurrences in buffer

Synopsis

#include <stdio.h> 
#include "fml.h" 
 
FLDOCC 
Fnum(FBFR *fbfr) 
 
#include "fml32.h" 
 
FLDOCC32 
Fnum32(FBFR32 *fbfr)

Description

Fnum() returns the number of fields contained in the specified buffer. fbfr is a pointer to a fielded buffer. The FLD_FML32 and FLD_VIEW32 fields are each counted as a single field, regardless of the number of fields they contain.

Fnum32() is used with 32-bit FML.

A thread in a multithreaded application may issue a call to Fnum() or Fnum32() while running in any context state, including TPINVALIDCONTEXT.

Return Values

This function returns -1 on error and sets Ferror to indicate the error condition.

Errors

Under the following conditions, Fnum() fails and sets Ferror to:

[FALIGNERR]

"fielded buffer not aligned"
The buffer does not begin on the proper boundary.

[FNOTFLD]

"buffer not fielded"
The buffer is not a fielded buffer or has not been initialized by Finit().