remove.c 文件参考

#include "../../../include/lammp/impl/inlines.h"
#include "../../../include/lammp/impl/tmp_alloc.h"
#include "../../../include/lammp/lmmpn.h"
#include "../../../include/lammp/numth.h"

remove.c 的引用(Include)关系图:

浏览源代码.

宏定义
#define	MAX_EXP   48
	Copyright (C) 2026 HJimmyK(Jericho Knox)

函数
mp_size_t	lmmp_remove_ (mp_ptr np, mp_size_t *restrict nn, mp_srcptr dp, mp_size_t dn)
static mp_size_t	try_div_ (mp_ptr qp, mp_ptr rp, mp_srcptr divp, mp_size_t divn, mp_srcptr numb, mp_size_t nb)
	qp 为商，rp 为余数，divp 为被除数，divn 为被除数长度，numb 为除数，nb 为除数长度 如果无法整除，则返回0，否则返回除数 qp 的长度

宏定义说明

MAX_EXP

#define MAX_EXP   48

Copyright (C) 2026 HJimmyK(Jericho Knox)

This file is part of LAMMP.

LAMMP is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License (LGPL) as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This program is distributed WITHOUT ANY WARRANTY.

See https://www.gnu.org/licenses/.

在文件 remove.c 第 31 行定义.

函数说明

lmmp_remove_()

mp_size_t lmmp_remove_	(	mp_ptr	np,
		mp_size_t *restrict	nn,
		mp_srcptr	dp,
		mp_size_t	dn
	)

在文件 remove.c 第 67 行定义.

                                                                                      {
    lmmp_param_assert(np != NULL && *nn > 0);
    lmmp_param_assert(dp != NULL && dn > 0);
 
    mp_srcptr pd_pow[MAX_EXP];
    mp_size_t pn_pow[MAX_EXP];
    // qp as quotient, rp as remainder, divp as divdend
    mp_ptr qp, rp, divp;
    mp_ptr prod;
    mp_size_t divn = *nn, qn;
    mp_size_t ret = 0;
    int i, j;
    pd_pow[0] = dp;
    pn_pow[0] = dn;
 
    TEMP_DECL;
 
    qp = TALLOC_TYPE(*nn, mp_limb_t);
    rp = TALLOC_TYPE(*nn, mp_limb_t);
 
    divp = np;
 
    for (i = 1; i < MAX_EXP; i++) {
        // if qn == 0, means cannot be divided by pd_pow[i - 1]
        if ((qn = try_div_(qp, rp, divp, divn, pd_pow[i - 1], pn_pow[i - 1]))) {
            divn = qn;
            LMMP_SWAP(qp, divp, mp_ptr);
 
            ret += (mp_size_t)1 << (i - 1);
            pn_pow[i] = 2 * pn_pow[i - 1];
            if (divn < pn_pow[i]) {
                ++i;
                break;
            }
            prod = TALLOC_TYPE(pn_pow[i], mp_limb_t);
            lmmp_sqr_(prod, pd_pow[i - 1], pn_pow[i - 1]);
            pn_pow[i] -= (prod[pn_pow[i] - 1] == 0) ? 1 : 0;
            pd_pow[i] = prod;
        } else {
            break;
        }
    }
    for (j = i - 1; j > 0; --j) {
        if ((qn = try_div_(qp, rp, divp, divn, pd_pow[j - 1], pn_pow[j - 1]))) {
            divn = qn;
            LMMP_SWAP(qp, divp, mp_ptr);
 
            ret += (mp_size_t)1 << (j - 1);
        }
    }
    if (qn == 0) {
        // 无法整除
        lmmp_copy(np, divp, divn);
        *nn = divn;
    } else {
        // 整除
        lmmp_copy(np, qp, qn);
        *nn = qn;
    }
 
    TEMP_FREE;
    return ret;
}

引用了 lmmp_copy, lmmp_param_assert, lmmp_sqr_, LMMP_SWAP, MAX_EXP, n, TALLOC_TYPE, TEMP_DECL, TEMP_FREE , 以及 try_div_().

函数调用图:

try_div_()

static mp_size_t try_div_ ( mp_ptr  qp, mp_ptr  rp, mp_srcptr  divp, mp_size_t  divn, mp_srcptr  numb, mp_size_t  nb  )

inlinestatic

qp 为商，rp 为余数，divp 为被除数，divn 为被除数长度，numb 为除数，nb 为除数长度 如果无法整除，则返回0，否则返回除数 qp 的长度

在文件 remove.c 第 37 行定义.

                                                                                                                     {
    if (divn < nb) {
        return 0;
    } else {
        int cmp;
        if (divn > nb)
            cmp = 1;
        else
            cmp = lmmp_cmp_(divp, numb, nb);
        if (cmp == 0) {
            qp[0] = 1;
            return 1;
        } else if (cmp < 0) {
            return 0;
        } else {
            // 拷贝原始数，当无法整除时，再进行恢复
            lmmp_div_(qp, rp, divp, divn, numb, nb);
            if (lmmp_zero_q_(rp, nb)) {
                // 整除
                divn = divn - nb + 1;
                while (divn > 0 && qp[divn - 1] == 0) --divn;
                return divn;
            } else {
                // 无法整除
                return 0;
            }
        }
    }
}

引用了 lmmp_cmp_(), lmmp_div_(), lmmp_zero_q_(), n , 以及 numb.

被这些函数引用 lmmp_remove_().

函数调用图:

这是这个函数的调用关系图: