Routines (alphabetical) > Routines: H > HDF-EOS Routines > EOS_SW_NENTRIES

# EOS_SW_NENTRIES

This function returns number of entries and descriptive string buffer size for a specified entity. This function can be called before an inquiry routine in order to determine the sizes of the output arrays and descriptive strings.

## Examples

In this example, we determine the number of dimension mapping entries.

nmaps = EOS_SW_NENTRIES(swathID, 2)

## Syntax

Result = EOS_SW_NENTRIES( swathID, entrycode [, LENGTH=variable] )

## Return Value

Number of entries or FAIL (–1) in the case of an improper swath id or entry code.

## Arguments

### swathID

Swath id (long) returned by EOS_SW_CREATE or EOS_SW_ATTACH.

### entrycode

Entrycode (long). Allowable values are:

- 0 = Dimensions
- 1 = Dimension Mappings
- 2 = Indexed Dimension Mappings
- 3 = Geolocation Fields
- 4 = Data Fields

## Keywords

### LENGTH

Set this keyword to a named variable that will contain the length of the string that would be returned by the corresponding inquiry routine, as a long integer.

## Version History

5.2 | Introduced