Routines (alphabetical) > Routines: H > HDF5 Routines > H5T_GET_SIZE

# H5T_GET_SIZE

The H5T_GET_SIZE function returns the size of a datatype in bytes.

## Syntax

Result = H5T_GET_SIZE(Datatype_id)

## Return Value

Represents the size (in bytes) of the first element found within the datatype.

Note: When H5T_GET_SIZE is given a datatype containing a string, it will return the number of characters + 1.

## Arguments

### Datatype_id

An integer representing the datatype’s identifier to be queried.

## Keywords

None

## Version History

5.6 | Introduced

## See Also

H5T_GET_CLASS, H5T_GET_SUPER