path: root/src/H5Tpkg.h

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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 files COPYING and Copyright.html.  COPYING can be found at the root   *
 * of the source code distribution tree; Copyright.html can be found at the  *
 * root level of an installed copy of the electronic HDF5 document set and   *
 * is linked from the top-level documents page.  It can also be found at     *
 * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have     *
 * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*
 * Programmer:	Robb Matzke <matzke@llnl.gov>
 *		Monday, December  8, 1997
 *
 * Purpose:	This file contains declarations which are visible only within
 *		the H5T package.  Source files outside the H5T package should
 *		include H5Tprivate.h instead.
 */
#ifndef H5T_PACKAGE
#error "Do not include this file outside the H5T package!"
#endif

#ifndef _H5Tpkg_H
#define _H5Tpkg_H

/*
 * Define this to enable debugging.
 */
#ifdef NDEBUG
#  undef H5T_DEBUG
#endif

/* Get package's private header */
#include "H5Tprivate.h"

/* Other private headers needed by this file */
#include "H5Fprivate.h"		/* Files				*/

/* Other public headers needed by this file */
#include "H5Spublic.h"		/* Dataspace functions			*/

/* Number of reserved IDs in ID group */
#define H5T_RESERVED_ATOMS 	8

/* Length of debugging name buffer */
#define H5T_NAMELEN		32

/* Macro to ease detecting "complex" datatypes (i.e. those with base types or fields) */
#define H5T_IS_COMPLEX(t)      ((t)==H5T_COMPOUND || (t)==H5T_ENUM || (t)==H5T_VLEN || (t)==H5T_ARRAY)

/* Macro to ease detecting fixed or variable-length "string" datatypes */
#define H5T_IS_STRING(dt)      (H5T_STRING == (dt)->type || (H5T_VLEN == (dt)->type && H5T_VLEN_STRING == (dt)->u.vlen.type))

/* Statistics about a conversion function */
struct H5T_stats_t {
    unsigned	ncalls;			/*num calls to conversion function   */
    hsize_t	nelmts;			/*total data points converted	     */
    H5_timer_t	timer;			/*total time for conversion	     */
};

/* The data type conversion database */
struct H5T_path_t {
    char	name[H5T_NAMELEN];	/*name for debugging only	     */
    H5T_t	*src;			/*source data type ID		     */
    H5T_t	*dst;			/*destination data type ID	     */
    H5T_conv_t	func;			/*data conversion function	     */
    hbool_t	is_hard;		/*is it a hard function?	     */
    H5T_stats_t	stats;			/*statistics for the conversion	     */
    H5T_cdata_t	cdata;			/*data for this function	     */
};

typedef struct H5T_atomic_t {
    H5T_order_t		order;	/*byte order				     */
    size_t		prec;	/*precision in bits			     */
    size_t		offset; /*bit position of lsb of value		     */
    H5T_pad_t	        lsb_pad;/*type of lsb padding			     */
    H5T_pad_t		msb_pad;/*type of msb padding			     */
    union {
	struct {
	    H5T_sign_t	sign;	/*type of integer sign			     */
	} i;			/*integer; integer types		     */

	struct {
	    size_t	sign;	/*bit position of sign bit		     */
	    size_t	epos;	/*position of lsb of exponent		     */
	    size_t	esize;	/*size of exponent in bits		     */
	    uint64_t	ebias;	/*exponent bias				     */
	    size_t	mpos;	/*position of lsb of mantissa		     */
	    size_t	msize;	/*size of mantissa			     */
	    H5T_norm_t	norm;	/*normalization				     */
	    H5T_pad_t	pad;	/*type of padding for internal bits	     */
	} f;			/*floating-point types			     */

	struct {
	    H5T_cset_t	cset;	/*character set				     */
	    H5T_str_t	pad;	/*space or null padding of extra bytes	     */
	} s;			/*string types				     */

	struct {
	    H5R_type_t	rtype;	/*type of reference stored		     */
            H5T_loc_t   loc;    /* Location of data in buffer		     */
	} r;			/*reference types			     */
    } u;
} H5T_atomic_t;

/* How members are sorted for compound or enum data types */
typedef enum H5T_sort_t {
    H5T_SORT_NONE	= 0,		/*not sorted			     */
    H5T_SORT_NAME	= 1,		/*sorted by member name		     */
    H5T_SORT_VALUE	= 2 		/*sorted by memb offset or enum value*/
} H5T_sort_t;

/* A compound data type */
typedef struct H5T_compnd_t {
    int		nalloc;		/*num entries allocated in MEMB array*/
    int		nmembs;		/*number of members defined in struct*/
    H5T_sort_t	sorted;		/*how are members sorted?	     */
    struct H5T_cmemb_t	*memb;	/*array of struct members	     */
} H5T_compnd_t;

/* An enumeration data type */
typedef struct H5T_enum_t {
    int		nalloc;		/*num entries allocated		     */
    int		nmembs;		/*number of members defined in enum  */
    H5T_sort_t	sorted;		/*how are members sorted?	     */
    uint8_t	*value;		/*array of values		     */
    char	**name;		/*array of symbol names		     */
} H5T_enum_t;

/* VL function pointers */
typedef hssize_t (*H5T_vlen_getlenfunc_t)(H5F_t *f, void *vl_addr);
typedef herr_t (*H5T_vlen_readfunc_t)(H5F_t *f, hid_t dxpl_id, void *vl_addr, void *buf, size_t len);
typedef herr_t (*H5T_vlen_writefunc_t)(H5F_t *f, hid_t dxpl_id, void *vl_addr, void *buf, void *bg_addr, hsize_t seq_len, hsize_t base_size);

/* VL types */
typedef enum {
    H5T_VLEN_BADTYPE =  -1, /* invalid VL Type */
    H5T_VLEN_SEQUENCE=0,    /* VL sequence */
    H5T_VLEN_STRING,        /* VL string */
    H5T_VLEN_MAXTYPE        /* highest type (Invalid as true type) */
} H5T_vlen_type_t;

/* A VL datatype */
typedef struct H5T_vlen_t {
    H5T_vlen_type_t     type;   /* Type of VL data in buffer */
    H5T_loc_t           loc;    /* Location of VL data in buffer */
    H5T_cset_t          cset;   /* For VL string. character set */
    H5T_str_t           pad;    /* For VL string.  space or null padding of 
                                 * extra bytes */                          
    H5F_t *f;                   /* File ID (if VL data is on disk) */
    H5T_vlen_getlenfunc_t getlen;   /* Function to get VL sequence size (in element units, not bytes) */
    H5T_vlen_readfunc_t read;   /* Function to read VL sequence into buffer */
    H5T_vlen_writefunc_t write; /* Function to write VL sequence from buffer */
} H5T_vlen_t;

/* An opaque data type */
typedef struct H5T_opaque_t {
    char		*tag;		/*short type description string	     */
} H5T_opaque_t;

/* An array datatype */
typedef struct H5T_array_t {
    size_t	nelem;		/* total number of elements in array */
    int		ndims;		/* member dimensionality        */
    size_t	dim[H5S_MAX_RANK];  /* size in each dimension       */
    int		perm[H5S_MAX_RANK]; /* index permutation            */
} H5T_array_t;

typedef enum H5T_state_t {
    H5T_STATE_TRANSIENT, 		/*type is a modifiable transient     */
    H5T_STATE_RDONLY,			/*transient, not modifiable, closable*/
    H5T_STATE_IMMUTABLE,		/*constant, not closable	     */
    H5T_STATE_NAMED,			/*named constant, not open	     */
    H5T_STATE_OPEN			/*named constant, open object header */
} H5T_state_t;

struct H5T_t {
    H5T_state_t		state;	/*current state of the type		     */
    H5G_entry_t		ent;	/*the type is a named type		     */
    H5F_t		*sh_file;/*file pointer if this is a shared type     */
    H5T_class_t		type;	/*which class of type is this?		     */
    size_t		size;	/*total size of an instance of this type     */
    hbool_t		force_conv;/* Set if this type always needs to be converted and H5T_conv_noop cannot be called */
    struct H5T_t	*parent;/*parent type for derived data types	     */
    union {
        H5T_atomic_t	atomic; /* an atomic data type              */
        H5T_compnd_t	compnd; /* a compound data type (struct)    */
        H5T_enum_t	enumer; /* an enumeration type (enum)       */
        H5T_vlen_t	vlen;   /* a variable-length datatype       */
        H5T_opaque_t	opaque; /* an opaque data type              */
        H5T_array_t	array;  /* an array datatype                */
    } u;
};

/* A compound data type member */
typedef struct H5T_cmemb_t {
    char		*name;		/*name of this member		     */
    size_t		offset;		/*offset from beginning of struct    */
    size_t		size;		/*total size: dims * type_size	     */
    struct H5T_t	*type;		/*type of this member		     */
} H5T_cmemb_t;

/* The master list of soft conversion functions */
typedef struct H5T_soft_t {
    char	name[H5T_NAMELEN];	/*name for debugging only	     */
    H5T_class_t src;			/*source data type class	     */
    H5T_class_t dst;			/*destination data type class	     */
    H5T_conv_t	func;			/*the conversion function	     */
} H5T_soft_t;

/* Bit search direction */
typedef enum H5T_sdir_t {
    H5T_BIT_LSB,			/*search lsb toward msb		     */
    H5T_BIT_MSB				/*search msb toward lsb		     */
} H5T_sdir_t;

/* The overflow handler */
H5_DLLVAR H5T_overflow_t H5T_overflow_g;

/*
 * Alignment information for native types. A value of N indicates that the
 * data must be aligned on an address ADDR such that 0 == ADDR mod N. When
 * N=1 no alignment is required; N=0 implies that alignment constraints were
 * not calculated.  These alignment info is only for H5Tget_native_type.
 * These values are used for structure alignment.
 */
H5_DLLVAR size_t	H5T_NATIVE_SCHAR_COMP_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_SHORT_COMP_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_INT_COMP_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_LONG_COMP_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_LLONG_COMP_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_FLOAT_COMP_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_DOUBLE_COMP_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_LDOUBLE_COMP_ALIGN_g;

H5_DLLVAR size_t H5T_POINTER_COMP_ALIGN_g;
H5_DLLVAR size_t H5T_HVL_COMP_ALIGN_g;
H5_DLLVAR size_t H5T_HOBJREF_COMP_ALIGN_g;
H5_DLLVAR size_t H5T_HDSETREGREF_COMP_ALIGN_g;

/*
 * Alignment information for native types. A value of N indicates that the
 * data must be aligned on an address ADDR such that 0 == ADDR mod N. When
 * N=1 no alignment is required; N=0 implies that alignment constraints were
 * not calculated.
 */
H5_DLLVAR size_t	H5T_NATIVE_SCHAR_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UCHAR_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_SHORT_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_USHORT_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_INT_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_LONG_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_ULONG_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_LLONG_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_ULLONG_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_FLOAT_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_DOUBLE_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_LDOUBLE_ALIGN_g;

/* C9x alignment constraints */
H5_DLLVAR size_t	H5T_NATIVE_INT8_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT8_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_INT_LEAST8_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT_LEAST8_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_INT_FAST8_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT_FAST8_ALIGN_g;

H5_DLLVAR size_t	H5T_NATIVE_INT16_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT16_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_INT_LEAST16_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT_LEAST16_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_INT_FAST16_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT_FAST16_ALIGN_g;

H5_DLLVAR size_t	H5T_NATIVE_INT32_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT32_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_INT_LEAST32_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT_LEAST32_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_INT_FAST32_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT_FAST32_ALIGN_g;

H5_DLLVAR size_t	H5T_NATIVE_INT64_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT64_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_INT_LEAST64_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT_LEAST64_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_INT_FAST64_ALIGN_g;
H5_DLLVAR size_t	H5T_NATIVE_UINT_FAST64_ALIGN_g;

/* Common functions */
H5_DLL herr_t H5T_init_interface(void);
H5_DLL H5T_t *H5T_create(H5T_class_t type, size_t size);
H5_DLL herr_t H5T_free(H5T_t *dt);
H5_DLL H5T_sign_t H5T_get_sign(H5T_t *dt);
H5_DLL H5T_t *H5T_get_super(H5T_t *dt);
H5_DLL char  *H5T_get_member_name(H5T_t *dt, int membno);
H5_DLL herr_t H5T_get_member_value(H5T_t *dt, int membno, void *value);
H5_DLL H5T_t *H5T_get_member_type(H5T_t *dt, int membno);
H5_DLL int H5T_get_nmembers(const H5T_t *dt);
H5_DLL htri_t H5T_is_variable_str(H5T_t *dt);
H5_DLL htri_t H5T_is_atomic(const H5T_t *dt);
H5_DLL herr_t H5T_insert(H5T_t *parent, const char *name, size_t offset,
        const H5T_t *member);
H5_DLL H5T_t *H5T_enum_create(H5T_t *parent);
H5_DLL herr_t H5T_enum_insert(H5T_t *dt, const char *name, void *value);
H5_DLL int    H5T_get_array_ndims(H5T_t *dt);
H5_DLL int    H5T_get_array_dims(H5T_t *dt, hsize_t dims[], int perm[]);
H5_DLL herr_t H5T_sort_value(H5T_t *dt, int *map);
H5_DLL herr_t H5T_sort_name(H5T_t *dt, int *map);
H5_DLL herr_t H5T_set_size(H5T_t *dt, size_t size);

/* Conversion functions */
H5_DLL herr_t H5T_conv_noop(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
			     hsize_t nelmts, size_t buf_stride,
                             size_t bkg_stride, void *buf, void *bkg,
                             hid_t dset_xfer_plist);

H5_DLL herr_t H5T_conv_order(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
			      hsize_t nelmts, size_t buf_stride,
                              size_t bkg_stride, void *_buf, void *bkg,
                              hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_order_opt(hid_t src_id, hid_t dst_id,
                                  H5T_cdata_t *cdata, hsize_t nelmts,
                                  size_t buf_stride, size_t bkg_stride,
                                  void *_buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_struct(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
			       hsize_t nelmts, size_t buf_stride,
                               size_t bkg_stride, void *_buf, void *bkg,
                               hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_struct_opt(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *_buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_enum(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
			     hsize_t nelmts, size_t buf_stride,
                             size_t bkg_stride, void *buf, void *bkg,
                             hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_vlen(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
			     hsize_t nelmts, size_t buf_stride,
                             size_t bkg_stride, void *buf, void *bkg,
                             hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_array(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
			     hsize_t nelmts, size_t buf_stride,
                             size_t bkg_stride, void *buf, void *bkg,
                             hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_i_i(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
			    hsize_t nelmts, size_t buf_stride,
                            size_t bkg_stride, void *_buf, void *bkg,
                            hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_f_f(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
			    hsize_t nelmts, size_t buf_stride,
                            size_t bkg_stride, void *_buf, void *bkg,
                            hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_s_s(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
			    hsize_t nelmts, size_t buf_stride,
                            size_t bkg_stride, void *_buf, void *bkg,
                            hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_b_b(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
			    hsize_t nelmts, size_t buf_stride,
                            size_t bkg_stride, void *_buf, void *bkg,
                            hid_t dset_xfer_plist);

H5_DLL herr_t H5T_conv_schar_uchar(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uchar_schar(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_schar_short(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_schar_ushort(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uchar_short(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uchar_ushort(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_schar_int(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_schar_uint(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uchar_int(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uchar_uint(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_schar_long(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_schar_ulong(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uchar_long(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uchar_ulong(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_schar_llong(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_schar_ullong(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uchar_llong(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uchar_ullong(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);

H5_DLL herr_t H5T_conv_short_schar(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_short_uchar(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ushort_schar(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ushort_uchar(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_short_ushort(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ushort_short(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_short_int(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_short_uint(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ushort_int(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ushort_uint(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_short_long(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_short_ulong(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ushort_long(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ushort_ulong(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_short_llong(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_short_ullong(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ushort_llong(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ushort_ullong(hid_t src_id, hid_t dst_id,
				      H5T_cdata_t *cdata, hsize_t nelmts,
				      size_t buf_stride, size_t bkg_stride,
                                      void *buf, void *bkg,
                                      hid_t dset_xfer_plist);

H5_DLL herr_t H5T_conv_int_schar(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_int_uchar(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uint_schar(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uint_uchar(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_int_short(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_int_ushort(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uint_short(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uint_ushort(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_int_uint(hid_t src_id, hid_t dst_id,
				 H5T_cdata_t *cdata, hsize_t nelmts,
				 size_t buf_stride, size_t bkg_stride,
                                 void *buf, void *bkg,
                                 hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uint_int(hid_t src_id, hid_t dst_id,
				 H5T_cdata_t *cdata, hsize_t nelmts,
				 size_t buf_stride, size_t bkg_stride,
                                 void *buf, void *bkg,
                                 hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_int_long(hid_t src_id, hid_t dst_id,
				 H5T_cdata_t *cdata, hsize_t nelmts,
				 size_t buf_stride, size_t bkg_stride,
                                 void *buf, void *bkg,
                                 hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_int_ulong(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uint_long(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uint_ulong(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_int_llong(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_int_ullong(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uint_llong(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_uint_ullong(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);

H5_DLL herr_t H5T_conv_long_schar(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_long_uchar(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ulong_schar(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ulong_uchar(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_long_short(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_long_ushort(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ulong_short(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ulong_ushort(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_long_int(hid_t src_id, hid_t dst_id,
				 H5T_cdata_t *cdata, hsize_t nelmts,
				 size_t buf_stride, size_t bkg_stride,
                                 void *buf, void *bkg,
                                 hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_long_uint(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ulong_int(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ulong_uint(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_long_ulong(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ulong_long(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_long_llong(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_long_ullong(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ulong_llong(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ulong_ullong(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);

H5_DLL herr_t H5T_conv_llong_schar(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_llong_uchar(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ullong_schar(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ullong_uchar(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_llong_short(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_llong_ushort(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ullong_short(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ullong_ushort(hid_t src_id, hid_t dst_id,
				      H5T_cdata_t *cdata, hsize_t nelmts,
				      size_t buf_stride, size_t bkg_stride,
                                      void *buf, void *bkg,
                                      hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_llong_int(hid_t src_id, hid_t dst_id,
				  H5T_cdata_t *cdata, hsize_t nelmts,
				  size_t buf_stride, size_t bkg_stride,
                                  void *buf, void *bkg,
                                  hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_llong_uint(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ullong_int(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ullong_uint(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_llong_long(hid_t src_id, hid_t dst_id,
				   H5T_cdata_t *cdata, hsize_t nelmts,
				   size_t buf_stride, size_t bkg_stride,
                                   void *buf, void *bkg,
                                   hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_llong_ulong(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ullong_long(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *buf, void *bkg,
                                    hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ullong_ulong(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_llong_ullong(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_ullong_llong(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);

H5_DLL herr_t H5T_conv_float_double(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_double_float(hid_t src_id, hid_t dst_id,
				     H5T_cdata_t *cdata, hsize_t nelmts,
				     size_t buf_stride, size_t bkg_stride,
                                     void *buf, void *bkg,
                                     hid_t dset_xfer_plist);
H5_DLL herr_t H5T_conv_i32le_f64le(hid_t src_id, hid_t dst_id,
				    H5T_cdata_t *cdata, hsize_t nelmts,
				    size_t buf_stride, size_t bkg_stride,
                                    void *_buf, void *bkg,
                                    hid_t dset_xfer_plist);

/* Bit twiddling functions */
H5_DLL void H5T_bit_copy(uint8_t *dst, size_t dst_offset, const uint8_t *src,
			  size_t src_offset, size_t size);
H5_DLL void H5T_bit_set(uint8_t *buf, size_t offset, size_t size,
			 hbool_t value);
H5_DLL hsize_t H5T_bit_get_d(uint8_t *buf, size_t offset, size_t size);
H5_DLL void H5T_bit_set_d(uint8_t *buf, size_t offset, size_t size,
			   hsize_t val);
H5_DLL ssize_t H5T_bit_find(uint8_t *buf, size_t offset, size_t size,
			     H5T_sdir_t direction, hbool_t value);
H5_DLL htri_t H5T_bit_inc(uint8_t *buf, size_t start, size_t size);

/* VL functions */
H5_DLL H5T_t * H5T_vlen_create(const H5T_t *base);
H5_DLL hssize_t H5T_vlen_seq_mem_getlen(H5F_t *f, void *vl_addr);
H5_DLL herr_t H5T_vlen_seq_mem_read(H5F_t *f, hid_t dxpl_id, void *vl_addr, void *_buf, size_t len);
H5_DLL herr_t H5T_vlen_seq_mem_write(H5F_t *f, hid_t dxpl_id, void *vl_addr, void *_buf, void *bg_addr, hsize_t seq_len, hsize_t base_size);
H5_DLL hssize_t H5T_vlen_str_mem_getlen(H5F_t *f, void *vl_addr);
H5_DLL herr_t H5T_vlen_str_mem_read(H5F_t *f, hid_t dxpl_id, void *vl_addr, void *_buf, size_t len);
H5_DLL herr_t H5T_vlen_str_mem_write(H5F_t *f, hid_t dxpl_id, void *vl_addr, void *_buf, void *bg_addr, hsize_t seq_len, hsize_t base_size);
H5_DLL hssize_t H5T_vlen_disk_getlen(H5F_t *f, void *vl_addr);
H5_DLL herr_t H5T_vlen_disk_read(H5F_t *f, hid_t dxpl_id, void *vl_addr, void *_buf, size_t len);
H5_DLL herr_t H5T_vlen_disk_write(H5F_t *f, hid_t dxpl_id, void *vl_addr, void *_buf, void *bg_addr, hsize_t seq_len, hsize_t base_size);
H5_DLL htri_t H5T_vlen_set_loc(H5T_t *dt, H5F_t *f, H5T_loc_t loc);

/* Array functions */
H5_DLL H5T_t * H5T_array_create(H5T_t *base, int ndims,
        const hsize_t dim[/* ndims */], const int perm[/* ndims */]);
#endif