Reads an attribute from disk

Procedure:

H5LT_GET_ATTRIBUTE_ULONG (loc_id, obj_name, attr_name, data)

Signature:

<pre><code class="language-c">herr_t H5LTget_attribute_ulong( hid_t loc_id, const char *obj_name, const char *attr_name,  unsigned long *data )</code></pre>

Parameters:
hid_t loc_idIN: Identifier of the object ( dataset or group) to read the attribute from
const char *obj_nameIN: The name of the object that the attribute is attached to
const char *attr_nameIN: The attribute name
unsigned long * data

OUT: Buffer with data

Description:

 H5LT_GET_ATTRIBUTE_ULONG reads an attribute named attr_name that is attached to the object specified by the name obj_name. The HDF5 datatype of the attribute is H5T_NATIVE_ULONG.

Returns:

Returns a non-negative value if successful; otherwise returns a negative value.

Example:

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