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Fdelete (3FML)

Name

Fdelete, Fdelete32-delete list of fields from buffer

Synopsis

#include <stdio.h>  
#include "fml.h"  
int  
Fdelete(FBFR *fbfr, FLDID *fieldid)  
#include "fml32.h"  
int  
Fdelete32(FBFR32 *fbfr, FLDID32 *fieldid)

Description

Fdelete() deletes all occurrences of all fields listed in the array of field identifiers, fieldid[]. The last entry in the array must be BADFLDID. fbfr is a pointer to a fielded buffer. fieldid is a pointer to an array of field identifiers. This is a more efficient way of deleting several fields from a buffer instead of using several Fdelall() calls. The update is done in-place. The array of field identifiers may be re-arranged by Fdelete() (they are sorted, if not already, in numeric order).

Fdelete() returns success even if no fields are deleted from the fielded buffer.

Fdelete32 is used with 32-bit FML.

Return Values

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

Errors

Under the following conditions, Fdelete() 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().

[FBADFLD]

"unknown field number or type"
A field identifier is specified which is not valid.

See Also

Fintro(3), Fdel(3), Fdelall(3)

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