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/*
* Copyright (C) 1997 NCSA
* All rights reserved.
*
* 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(N,V1,V2) (H5V_vector_cmp (N, V1, V2)==0)
#define H5V_vector_lt(N,V1,V2) (H5V_vector_cmp (N, V1, V2)<0)
#define H5V_vector_gt(N,V1,V2) (H5V_vector_cmp (N, V1, V2)>0)
#define H5V_vector_le(N,V1,V2) (H5V_vector_cmp (N, V1, V2)<=0)
#define H5V_vector_ge(N,V1,V2) (H5V_vector_cmp (N, V1, V2)>=0)
/* Other functions */
#define H5V_vector_cpy(N,DST,SRC) { \
if (SRC) HDmemcpy (DST, SRC, (N)*sizeof(size_t)); \
else HDmemset (DST, 0, (N)*sizeof(size_t)); \
}
#define H5V_vector_zero(N,DST) HDmemset(DST,0,(N)*sizeof(size_t))
/* A null pointer is equivalent to a zero vector */
#define H5V_ZERO NULL
size_t H5V_hyper_stride(intn n, const size_t *size, const size_t *total_size,
const size_t *offset, ssize_t *stride);
hbool_t H5V_hyper_disjointp(intn n, const size_t *offset1,
const size_t *size1, const size_t *offset2,
const size_t *size2);
hbool_t H5V_hyper_eq(intn n, const size_t *offset1, const size_t *size1,
const size_t *offset2, const size_t *size2);
herr_t H5V_hyper_fill(intn n, const size_t *total_size, const size_t *offset,
const size_t *size, void *buf, uintn val);
herr_t H5V_hyper_copy(intn n, const size_t *size,
const size_t *dst_total_size, const size_t *dst_offset,
void *_dst, const size_t *src_total_size,
const size_t *src_offset, const void *_src);
herr_t H5V_stride_fill(intn n, size_t elmt_size, const size_t *size,
const ssize_t *stride, void *_dst, uintn fill_value);
herr_t H5V_stride_copy(intn n, size_t elmt_size, const size_t *_size,
const ssize_t *dst_stride, void *_dst,
const ssize_t *src_stride, const void *_src);
herr_t H5V_stride_copy2(size_t nelmts, size_t elmt_size, intn dst_n,
const size_t *dst_size, const ssize_t *dst_stride,
void *_dst, intn src_n, const size_t *src_size,
const ssize_t *src_stride, const void *_src);
herr_t H5V_stride_optimize1(intn *np, size_t *elmt_size, size_t *size,
ssize_t *stride1);
herr_t H5V_stride_optimize2(intn *np, size_t *elmt_size, size_t *size,
ssize_t *stride1, ssize_t *stride2);
/*-------------------------------------------------------------------------
* 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 inline size_t
__attribute__((unused))
H5V_vector_reduce_product(intn n, const size_t *v)
{
size_t ans = 1;
if (n && !v) return 0;
while (n--) ans *= *v++;
return ans;
}
/*-------------------------------------------------------------------------
* Function: H5V_vector_zerop
*
* 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 inline hbool_t
__attribute__((unused))
H5V_vector_zerop(intn n, const size_t *v)
{
if (!v) return TRUE;
while (n--) {
if (*v++) return FALSE;
}
return TRUE;
}
/*-------------------------------------------------------------------------
* Function: H5V_vector_cmp
*
* 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 inline intn
__attribute__((unused))
H5V_vector_cmp(intn n, const size_t *v1, const size_t *v2)
{
if (v1 == v2) return 0;
while (n--) {
if ((v1 ? *v1 : 0) < (v2 ? *v2 : 0)) return -1;
if ((v1 ? *v1 : 0) > (v2 ? *v2 : 0)) return 1;
if (v1) v1++;
if (v2) v2++;
}
return 0;
}
/*-------------------------------------------------------------------------
* Function: H5V_vector_inc
*
* Purpose: Increments V1 by V2
*
* Return: void
*
* Programmer: Robb Matzke
* Monday, October 13, 1997
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static inline void
__attribute__((unused))
H5V_vector_inc(intn n, size_t *v1, const size_t *v2)
{
while (n--) *v1++ += *v2++;
}
#endif
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