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e56ed6e1ab
Re-formats the BCmath extension to have consistent formatting. Mostly, it adds the spaces in calculations to have them more readable. Also: - removes unused headers - removes few variables which are used only once in the code Co-authored-by: George Peter Banyard <girgias@php.net>
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/* init.c: bcmath library file. */
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/*
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Copyright (C) 1991, 1992, 1993, 1994, 1997 Free Software Foundation, Inc.
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Copyright (C) 2000 Philip A. Nelson
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details. (LICENSE)
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to:
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The Free Software Foundation, Inc.
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59 Temple Place, Suite 330
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Boston, MA 02111-1307 USA.
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You may contact the author by:
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e-mail: philnelson@acm.org
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us-mail: Philip A. Nelson
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Computer Science Department, 9062
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Western Washington University
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Bellingham, WA 98226-9062
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*************************************************************************/
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#include "bcmath.h"
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#include <stdbool.h>
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#include <stddef.h>
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#include <string.h>
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#include "zend_alloc.h"
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/* new_num allocates a number and sets fields to known values. */
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bc_num _bc_new_num_ex(size_t length, size_t scale, bool persistent)
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{
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/* PHP Change: malloc() -> pemalloc(), removed free_list code */
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bc_num temp = (bc_num) safe_pemalloc(1, sizeof(bc_struct) + length, scale, persistent);
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temp->n_sign = PLUS;
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temp->n_len = length;
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temp->n_scale = scale;
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temp->n_refs = 1;
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/* PHP Change: malloc() -> pemalloc() */
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temp->n_ptr = (char *) safe_pemalloc(1, length, scale, persistent);
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temp->n_value = temp->n_ptr;
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memset(temp->n_ptr, 0, length + scale);
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return temp;
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}
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/* "Frees" a bc_num NUM. Actually decreases reference count and only
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frees the storage if reference count is zero. */
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void _bc_free_num_ex(bc_num *num, bool persistent)
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{
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if (*num == NULL) {
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return;
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}
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(*num)->n_refs--;
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if ((*num)->n_refs == 0) {
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if ((*num)->n_ptr) {
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/* PHP Change: free() -> pefree(), removed free_list code */
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pefree((*num)->n_ptr, persistent);
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}
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pefree(*num, persistent);
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}
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*num = NULL;
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}
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/* Initialize the number package! */
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void bc_init_numbers(void)
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{
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BCG(_zero_) = _bc_new_num_ex(1, 0, 1);
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BCG(_one_) = _bc_new_num_ex(1, 0, 1);
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BCG(_one_)->n_value[0] = 1;
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BCG(_two_) = _bc_new_num_ex(1, 0, 1);
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BCG(_two_)->n_value[0] = 2;
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}
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/* Make a copy of a number! Just increments the reference count! */
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bc_num bc_copy_num(bc_num num)
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{
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num->n_refs++;
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return num;
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}
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/* Initialize a number NUM by making it a copy of zero. */
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void bc_init_num(bc_num *num)
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{
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*num = bc_copy_num(BCG(_zero_));
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}
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