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cstl_numeric_private.c
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/*
* The implementation of private numeric.
* Copyright (C) 2008 - 2013 Wangbo
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author e-mail: activesys.wb@gmail.com
* activesys@sina.com.cn
*/
/** include section **/
#include <cstl/cstl_def.h>
#include <cstl/cstl_alloc.h>
#include <cstl/cstl_types.h>
#include <cstl/citerator.h>
#include <cstl/cfunctional.h>
#include <cstl/cnumeric.h>
/** local constant declaration and local macro section **/
/** local data type declaration and local struct, union, enum section **/
/** local function prototype section **/
/** exported global variable definition section **/
/** local global variable definition section **/
/** exported function implementation section **/
/**
* Assigns sequentially increasing values to a range.
*/
void _algo_iota(forward_iterator_t it_first, forward_iterator_t it_last, ...)
{
va_list val_elemlist;
va_start(val_elemlist, it_last);
_algo_iota_varg(it_first, it_last, val_elemlist);
va_end(val_elemlist);
}
/**
* Assigns sequentially increasing values to a range.
*/
void _algo_iota_varg(forward_iterator_t it_first, forward_iterator_t it_last, va_list val_elemlist)
{
iterator_t it_iter;
void* pv_value = NULL;
ufun_t ufun_op;
assert(_iterator_valid_range(it_first, it_last, _FORWARD_ITERATOR));
pv_value = _iterator_allocate_init_elem(it_first);
_type_get_varg_value(_iterator_get_typeinfo(it_first), val_elemlist, pv_value);
ufun_op = _fun_get_unary(it_first, _INCREASE_FUN);
for (it_iter = it_first; !iterator_equal(it_iter, it_last); it_iter = iterator_next(it_iter)) {
iterator_set_value(it_iter, pv_value);
(*ufun_op)(pv_value, pv_value);
}
_iterator_deallocate_destroy_elem(it_first, pv_value);
pv_value = NULL;
}
/**
* Computes the sum of all the elements in a specified range including some initial value by computing successive partial sums.
*/
void _algo_accumulate(input_iterator_t it_first, input_iterator_t it_last, void* pv_output, ...)
{
va_list val_elemlist;
if (_iterator_get_typestyle(it_first) == _TYPE_C_BUILTIN &&
strncmp(_iterator_get_typebasename(it_first), _C_STRING_TYPE, _TYPE_NAME_SIZE) != 0) {
va_start(val_elemlist, pv_output);
_algo_accumulate_if_varg(it_first, it_last, _fun_get_binary(it_first, _PLUS_FUN), pv_output, val_elemlist);
va_end(val_elemlist);
}
}
/**
* Computes the result of successive partial results similarly obtained from using a specified binary operation other than the sum.
*/
void _algo_accumulate_if(input_iterator_t it_first, input_iterator_t it_last, bfun_t bfun_op, void* pv_output, ...)
{
va_list val_elemlist;
va_start(val_elemlist, pv_output);
_algo_accumulate_if_varg(it_first, it_last, bfun_op, pv_output, val_elemlist);
va_end(val_elemlist);
}
/**
* Computes the result of successive partial results similarly obtained from using a specified binary operation other than the sum.
*/
void _algo_accumulate_if_varg(input_iterator_t it_first, input_iterator_t it_last, bfun_t bfun_op, void* pv_output, va_list val_elemlist)
{
iterator_t it_iter;
assert(_iterator_valid_range(it_first, it_last, _INPUT_ITERATOR));
assert(pv_output != NULL);
if (bfun_op == NULL) {
bfun_op = _fun_get_binary(it_first, _PLUS_FUN);
}
_type_get_varg_value(_iterator_get_typeinfo(it_first), val_elemlist, pv_output);
for (it_iter = it_first; !iterator_equal(it_iter, it_last); it_iter = iterator_next(it_iter)) {
(*bfun_op)(pv_output, iterator_get_pointer(it_iter), pv_output);
}
}
/**
* Computes the sum of the element-wise product of two ranges and adds it to a specified initial value.
*/
void _algo_inner_product(
input_iterator_t it_first1, input_iterator_t it_last1, input_iterator_t it_first2, void* pv_output, ...)
{
va_list val_elemlist;
if (_iterator_get_typestyle(it_first1) == _TYPE_C_BUILTIN &&
strncmp(_iterator_get_typebasename(it_first1), _C_STRING_TYPE, _TYPE_NAME_SIZE) != 0) {
va_start(val_elemlist, pv_output);
_algo_inner_product_if_varg(
it_first1, it_last1, it_first2, _fun_get_binary(it_first1, _PLUS_FUN),
_fun_get_binary(it_first1, _MULTIPLIES_FUN), pv_output, val_elemlist);
va_end(val_elemlist);
}
}
/**
* Computes the result of a generalized procedure where the sum and product binary operations are replaced by other specified binary operations.
*/
void _algo_inner_product_if(
input_iterator_t it_first1, input_iterator_t it_last1, input_iterator_t it_first2,
bfun_t bfun_op1, bfun_t bfun_op2, void* pv_output, ...)
{
va_list val_elemlist;
va_start(val_elemlist, pv_output);
_algo_inner_product_if_varg(it_first1, it_last1, it_first2, bfun_op1, bfun_op2, pv_output, val_elemlist);
va_end(val_elemlist);
}
/**
* Computes the result of a generalized procedure where the sum and product binary operations are replaced by other specified binary operations.
*/
void _algo_inner_product_if_varg(
input_iterator_t it_first1, input_iterator_t it_last1, input_iterator_t it_first2,
bfun_t bfun_op1, bfun_t bfun_op2, void* pv_output, va_list val_elemlist)
{
iterator_t it_index1;
iterator_t it_index2;
void* pv_tmp = NULL;
assert(_iterator_valid_range(it_first1, it_last1, _INPUT_ITERATOR));
assert(_iterator_limit_type(it_first2, _INPUT_ITERATOR));
assert(_iterator_same_elem_type(it_first1, it_first2));
assert(pv_output != NULL);
pv_tmp = _iterator_allocate_init_elem(it_first1);
_type_get_varg_value(_iterator_get_typeinfo(it_first1), val_elemlist, pv_output);
if (bfun_op1 == NULL) {
bfun_op1 = _fun_get_binary(it_first1, _PLUS_FUN);
}
if (bfun_op2 == NULL) {
bfun_op2 = _fun_get_binary(it_first1, _MULTIPLIES_FUN);
}
for (it_index1 = it_first1, it_index2 = it_first2;
!iterator_equal(it_index1, it_last1);
it_index1 = iterator_next(it_index1), it_index2 = iterator_next(it_index2)) {
(*bfun_op2)(iterator_get_pointer(it_index1), iterator_get_pointer(it_index2), pv_tmp);
(*bfun_op1)(pv_output, pv_tmp, pv_output);
}
_iterator_deallocate_destroy_elem(it_first1, pv_tmp);
}
/** local function implementation section **/
/** eof **/