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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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>
* Friday, October 10, 1997
*/
#ifndef H5Vprivate_H
#define H5Vprivate_H
#include "H5private.h"
/* Vector comparison functions like Fortran66 comparison operators */
#define H5V_vector_eq_s(N,V1,V2) (H5V_vector_cmp_s (N, V1, V2)==0)
#define H5V_vector_lt_s(N,V1,V2) (H5V_vector_cmp_s (N, V1, V2)<0)
#define H5V_vector_gt_s(N,V1,V2) (H5V_vector_cmp_s (N, V1, V2)>0)
#define H5V_vector_le_s(N,V1,V2) (H5V_vector_cmp_s (N, V1, V2)<=0)
#define H5V_vector_ge_s(N,V1,V2) (H5V_vector_cmp_s (N, V1, V2)>=0)
#define H5V_vector_eq_u(N,V1,V2) (H5V_vector_cmp_u (N, V1, V2)==0)
#define H5V_vector_lt_u(N,V1,V2) (H5V_vector_cmp_u (N, V1, V2)<0)
#define H5V_vector_gt_u(N,V1,V2) (H5V_vector_cmp_u (N, V1, V2)>0)
#define H5V_vector_le_u(N,V1,V2) (H5V_vector_cmp_u (N, V1, V2)<=0)
#define H5V_vector_ge_u(N,V1,V2) (H5V_vector_cmp_u (N, V1, V2)>=0)
/* Other functions */
#define H5V_vector_cpy(N,DST,SRC) { \
assert (sizeof(*(DST))==sizeof(*(SRC))); \
if (SRC) HDmemcpy (DST, SRC, (N)*sizeof(*(DST))); \
else HDmemset (DST, 0, (N)*sizeof(*(DST))); \
}
#define H5V_vector_zero(N,DST) HDmemset(DST,0,(N)*sizeof(*(DST)))
/* A null pointer is equivalent to a zero vector */
#define H5V_ZERO NULL
H5_DLL hsize_t H5V_hyper_stride(unsigned n, const hsize_t *size,
const hsize_t *total_size,
const hsize_t *offset,
hsize_t *stride);
H5_DLL htri_t H5V_hyper_disjointp(unsigned n, const hsize_t *offset1,
const size_t *size1,
const hsize_t *offset2,
const size_t *size2);
H5_DLL htri_t H5V_hyper_eq(unsigned n, const hsize_t *offset1,
const hsize_t *size1, const hsize_t *offset2,
const hsize_t *size2);
H5_DLL herr_t H5V_hyper_fill(unsigned n, const hsize_t *_size,
const hsize_t *total_size,
const hsize_t *offset, void *_dst,
unsigned fill_value);
H5_DLL herr_t H5V_hyper_copy(unsigned n, const hsize_t *size,
const hsize_t *dst_total_size,
const hsize_t *dst_offset, void *_dst,
const hsize_t *src_total_size,
const hsize_t *src_offset, const void *_src);
H5_DLL herr_t H5V_stride_fill(unsigned n, hsize_t elmt_size, const hsize_t *size,
const hsize_t *stride, void *_dst,
unsigned fill_value);
H5_DLL herr_t H5V_stride_copy(unsigned n, hsize_t elmt_size, const hsize_t *_size,
const hsize_t *dst_stride, void *_dst,
const hsize_t *src_stride, const void *_src);
H5_DLL herr_t H5V_stride_copy_s(unsigned n, hsize_t elmt_size, const hsize_t *_size,
const hssize_t *dst_stride, void *_dst,
const hssize_t *src_stride, const void *_src);
H5_DLL herr_t H5V_array_fill(void *_dst, const void *src, size_t size,
size_t count);
H5_DLL herr_t H5V_array_down(unsigned n, const hsize_t *total_size,
hsize_t *down);
H5_DLL hsize_t H5V_array_offset_pre(unsigned n,
const hsize_t *acc, const hsize_t *offset);
H5_DLL hsize_t H5V_array_offset(unsigned n, const hsize_t *total_size,
const hsize_t *offset);
H5_DLL herr_t H5V_array_calc(hsize_t offset, unsigned n,
const hsize_t *total_size, hsize_t *coords);
H5_DLL herr_t H5V_chunk_index(unsigned ndims, const hsize_t *coord,
const size_t *chunk, const hsize_t *down_nchunks, hsize_t *chunk_idx);
H5_DLL ssize_t H5V_memcpyvv(void *_dst,
size_t dst_max_nseq, size_t *dst_curr_seq, size_t dst_len_arr[], hsize_t dst_off_arr[],
const void *_src,
size_t src_max_nseq, size_t *src_curr_seq, size_t src_len_arr[], hsize_t src_off_arr[]);
/*-------------------------------------------------------------------------
* Function: H5V_vector_reduce_product
*
* Purpose: Product reduction of a vector. Vector elements and return
* value are size_t because we usually want the number of
* elements in an array and array dimensions are always of type
* size_t.
*
* Return: Success: Product of elements
*
* Failure: 1 if N is zero
*
* Programmer: Robb Matzke
* Friday, October 10, 1997
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static H5_inline hsize_t UNUSED
H5V_vector_reduce_product(unsigned n, const hsize_t *v)
{
hsize_t ret_value = 1;
/* Use FUNC_ENTER_NOAPI_NOINIT_NOFUNC here to avoid performance issues */
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5V_vector_reduce_product)
if (n && !v) HGOTO_DONE(0)
while (n--) ret_value *= *v++;
done:
FUNC_LEAVE_NOAPI(ret_value)
}
/*-------------------------------------------------------------------------
* Function: H5V_vector_zerop_u
*
* Purpose: Determines if all elements of a vector are zero.
*
* Return: Success: TRUE if all elements are zero,
* FALSE otherwise
*
* Failure: TRUE if N is zero
*
* Programmer: Robb Matzke
* Friday, October 10, 1997
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static H5_inline htri_t UNUSED
H5V_vector_zerop_u(int n, const hsize_t *v)
{
htri_t ret_value=TRUE; /* Return value */
/* Use FUNC_ENTER_NOAPI_NOINIT_NOFUNC here to avoid performance issues */
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5V_vector_zerop_u)
if (!v)
HGOTO_DONE(TRUE)
while (n--)
if (*v++)
HGOTO_DONE(FALSE)
done:
FUNC_LEAVE_NOAPI(ret_value)
}
/*-------------------------------------------------------------------------
* Function: H5V_vector_zerop_s
*
* Purpose: Determines if all elements of a vector are zero.
*
* Return: Success: TRUE if all elements are zero,
* FALSE otherwise
*
* Failure: TRUE if N is zero
*
* Programmer: Robb Matzke
* Friday, October 10, 1997
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static H5_inline htri_t UNUSED
H5V_vector_zerop_s(int n, const hssize_t *v)
{
htri_t ret_value=TRUE; /* Return value */
/* Use FUNC_ENTER_NOAPI_NOINIT_NOFUNC here to avoid performance issues */
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5V_vector_zerop_s)
if (!v)
HGOTO_DONE(TRUE)
while (n--)
if (*v++)
HGOTO_DONE(FALSE)
done:
FUNC_LEAVE_NOAPI(ret_value)
}
/*-------------------------------------------------------------------------
* Function: H5V_vector_cmp_u
*
* Purpose: Compares two vectors of the same size and determines if V1 is
* lexicographically less than, equal, or greater than V2.
*
* Return: Success: -1 if V1 is less than V2
* 0 if they are equal
* 1 if V1 is greater than V2
*
* Failure: 0 if N is zero
*
* Programmer: Robb Matzke
* Friday, October 10, 1997
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static H5_inline int UNUSED
H5V_vector_cmp_u (unsigned n, const hsize_t *v1, const hsize_t *v2)
{
int ret_value=0; /* Return value */
/* Use FUNC_ENTER_NOAPI_NOINIT_NOFUNC here to avoid performance issues */
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5V_vector_cmp_u)
if (v1 == v2) HGOTO_DONE(0)
if (v1 == NULL) HGOTO_DONE(-1)
if (v2 == NULL) HGOTO_DONE(1)
while (n--) {
if (*v1 < *v2) HGOTO_DONE(-1)
if (*v1 > *v2) HGOTO_DONE(1)
v1++;
v2++;
}
done:
FUNC_LEAVE_NOAPI(ret_value)
}
/*-------------------------------------------------------------------------
* Function: H5V_vector_cmp_s
*
* Purpose: Compares two vectors of the same size and determines if V1 is
* lexicographically less than, equal, or greater than V2.
*
* Return: Success: -1 if V1 is less than V2
* 0 if they are equal
* 1 if V1 is greater than V2
*
* Failure: 0 if N is zero
*
* Programmer: Robb Matzke
* Wednesday, April 8, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static H5_inline int UNUSED
H5V_vector_cmp_s (unsigned n, const hssize_t *v1, const hssize_t *v2)
{
int ret_value=0; /* Return value */
/* Use FUNC_ENTER_NOAPI_NOINIT_NOFUNC here to avoid performance issues */
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5V_vector_cmp_s)
if (v1 == v2) HGOTO_DONE(0)
if (v1 == NULL) HGOTO_DONE(-1)
if (v2 == NULL) HGOTO_DONE(1)
while (n--) {
if (*v1 < *v2) HGOTO_DONE(-1)
if (*v1 > *v2) HGOTO_DONE(1)
v1++;
v2++;
}
done:
FUNC_LEAVE_NOAPI(ret_value)
}
/*-------------------------------------------------------------------------
* Function: H5V_vector_inc
*
* Purpose: Increments V1 by V2
*
* Return: void
*
* Programmer: Robb Matzke
* Monday, October 13, 1997
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static H5_inline void UNUSED
H5V_vector_inc(int n, hsize_t *v1, const hsize_t *v2)
{
while (n--) *v1++ += *v2++;
}
/*-------------------------------------------------------------------------
* Function: H5V_power_of_two
*
* Purpose: Determines the log base two of a number (i.e. log2(n)).
*
* Note: N must be a power of two and is limited to 32-bit quantities.
* This is from the "Bit Twiddling Hacks" at:
* http://graphics.stanford.edu/~seander/bithacks.html#IntegerLogDeBruijn
*
* Return: log2(n) (always - no failure condition)
*
* Programmer: Quincey Koziol
* Monday, Febraury 27, 2006
*
*-------------------------------------------------------------------------
*/
static H5_inline unsigned
H5V_log2(unsigned n)
{
static const unsigned MultiplyDeBruijnBitPosition[32] =
{
0, 1, 28, 2, 29, 14, 24, 3, 30, 22, 20, 15, 25, 17, 4, 8,
31, 27, 13, 23, 21, 19, 16, 7, 26, 12, 18, 6, 11, 5, 10, 9
};
return(MultiplyDeBruijnBitPosition[(n * 0x077CB531UL) >> 27]);
} /* H5V_log2() */
#endif /* H5Vprivate_H */
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