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[svn-r2850] Purpose:

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Added new function.
Description:
    It's often convenient to query the class of a compound datatype's member
    to determine if it's an array and the previous way required you to open
    the member type to query it's class.
Solution:
    Added new H5Tget_member_class function to directly ask for the member type's
    class.
Platforms tested:
    FreeBSD 4.1.1 (hawkwind)
This commit is contained in:
Quincey Koziol 2000-11-09 18:00:19 -05:00
parent 2ce142b6ee
commit 66c44914cc
2 changed files with 39 additions and 9 deletions
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38
src/H5T.c
View File

@ -3311,6 +3311,44 @@ H5Tget_member_offset(hid_t type_id, int membno)
FUNC_LEAVE(offset);
}
/*-------------------------------------------------------------------------
* Function: H5Tget_member_class
*
* Purpose: Returns the datatype class of a member of a compound datatype.
*
* Return: Success: Non-negative
*
* Failure: H5T_NO_CLASS
*
* Programmer: Quincey Koziol
* Thursday, November 9, 2000
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
H5T_class_t
H5Tget_member_class(hid_t type_id, int membno)
{
H5T_t *dt = NULL;
H5T_class_t ret_value = H5T_NO_CLASS;
FUNC_ENTER(H5Tget_member_class, H5T_NO_CLASS);
/* Check args */
if (H5I_DATATYPE != H5I_get_type(type_id) ||
NULL == (dt = H5I_object(type_id)) || H5T_COMPOUND != dt->type)
HRETURN_ERROR(H5E_ARGS, H5E_BADTYPE, H5T_NO_CLASS, "not a compound data type");
if (membno < 0 || membno >= dt->u.compnd.nmembs)
HRETURN_ERROR(H5E_ARGS, H5E_BADVALUE, H5T_NO_CLASS, "invalid member number");
/* Value */
ret_value = dt->u.compnd.memb[membno].type->type;
FUNC_LEAVE(ret_value);
} /* end H5Tget_member_class() */
/*-------------------------------------------------------------------------
* Function: H5Tget_member_type

10
src/H5Tpublic.h
View File

@ -458,11 +458,6 @@ __DLL__ htri_t H5Tcommitted(hid_t type_id);
/* Operations defined on compound data types */
__DLL__ herr_t H5Tinsert(hid_t parent_id, const char *name, size_t offset,
hid_t member_id);
#ifdef QAK
__DLL__ herr_t H5Tinsert_array(hid_t parent_id, const char *name,
size_t offset, int ndims, const size_t dim[],
const int *perm, hid_t member_id);
#endif /* QAK */
__DLL__ herr_t H5Tpack(hid_t type_id);
/* Operations defined on enumeration data types */
@ -506,10 +501,7 @@ __DLL__ H5T_str_t H5Tget_strpad(hid_t type_id);
__DLL__ int H5Tget_nmembers(hid_t type_id);
__DLL__ char *H5Tget_member_name(hid_t type_id, int membno);
__DLL__ size_t H5Tget_member_offset(hid_t type_id, int membno);
#ifdef QAK
__DLL__ int H5Tget_member_dims(hid_t type_id, int membno, size_t dims[]/*out*/,
int perm[]/*out*/);
#endif /* QAK */
__DLL__ H5T_class_t H5Tget_member_class(hid_t type_id, int membno);
__DLL__ hid_t H5Tget_member_type(hid_t type_id, int membno);
__DLL__ herr_t H5Tget_member_value(hid_t type_id, int membno,
void *value/*out*/);