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Diffstat (limited to 'src/H5Tcset.c')
| -rw-r--r-- | src/H5Tcset.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/H5Tcset.c b/src/H5Tcset.c new file mode 100644 index 0000000..186e598 --- /dev/null +++ b/src/H5Tcset.c @@ -0,0 +1,124 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * Copyright by the Board of Trustees of the University of Illinois. * + * All rights reserved. * + * * + * This file is part of HDF5. The full HDF5 copyright notice, including * + * terms governing use, modification, and redistribution, is contained in * + * the COPYING file, which can be found at the root of the source code * + * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * Module Info: This module contains the functionality for setting & querying + * the character set (cset) for the H5T interface. + */ + +#include "H5Tmodule.h" /* This source code file is part of the H5T module */ + + +#include "H5private.h" /*generic functions */ +#include "H5Eprivate.h" /*error handling */ +#include "H5Iprivate.h" /*ID functions */ +#include "H5Tpkg.h" /*data-type functions */ + + +/*------------------------------------------------------------------------- + * Function: H5Tget_cset + * + * Purpose: HDF5 is able to distinguish between character sets of + * different nationalities and to convert between them to the + * extent possible. + * + * Return: Success: The character set of a string type. + * + * Failure: H5T_CSET_ERROR (Negative) + * + * Programmer: Robb Matzke + * Friday, January 9, 1998 + * + * Modifications: + * Robb Matzke, 22 Dec 1998 + * Also works for derived data types. + * + *------------------------------------------------------------------------- + */ +H5T_cset_t +H5Tget_cset(hid_t type_id) +{ + H5T_t *dt; + H5T_cset_t ret_value; + + FUNC_ENTER_API(H5T_CSET_ERROR) + H5TRACE1("Tc", "i", type_id); + + /* Check args */ + if (NULL == (dt = (H5T_t *)H5I_object_verify(type_id,H5I_DATATYPE))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5T_CSET_ERROR, "not a data type") + while (dt->shared->parent && !H5T_IS_STRING(dt->shared)) + dt = dt->shared->parent; /*defer to parent*/ + if (!H5T_IS_STRING(dt->shared)) + HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, H5T_CSET_ERROR, "operation not defined for data type class") + + /* result */ + if(H5T_IS_FIXED_STRING(dt->shared)) + ret_value = dt->shared->u.atomic.u.s.cset; + else + ret_value = dt->shared->u.vlen.cset; + +done: + FUNC_LEAVE_API(ret_value) +} + + +/*------------------------------------------------------------------------- + * Function: H5Tset_cset + * + * Purpose: HDF5 is able to distinguish between character sets of + * different nationalities and to convert between them to the + * extent possible. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Robb Matzke + * Friday, January 9, 1998 + * + * Modifications: + * Robb Matzke, 22 Dec 1998 + * Also works with derived data types. + * + *------------------------------------------------------------------------- + */ +herr_t +H5Tset_cset(hid_t type_id, H5T_cset_t cset) +{ + H5T_t *dt; + herr_t ret_value=SUCCEED; /* Return value */ + + FUNC_ENTER_API(FAIL) + H5TRACE2("e", "iTc", type_id, cset); + + /* Check args */ + if (NULL == (dt = (H5T_t *)H5I_object_verify(type_id,H5I_DATATYPE))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type") + if (H5T_STATE_TRANSIENT!=dt->shared->state) + HGOTO_ERROR(H5E_ARGS, H5E_CANTINIT, FAIL, "data type is read-only") + if (cset < H5T_CSET_ASCII || cset >= H5T_NCSET) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "illegal character set type") + while (dt->shared->parent && !H5T_IS_STRING(dt->shared)) + dt = dt->shared->parent; /*defer to parent*/ + if (!H5T_IS_STRING(dt->shared)) + HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "operation not defined for data type class") + + /* Commit */ + if(H5T_IS_FIXED_STRING(dt->shared)) + dt->shared->u.atomic.u.s.cset = cset; + else + dt->shared->u.vlen.cset = cset; + +done: + FUNC_LEAVE_API(ret_value) +} + |