mirror of
https://github.com/php/php-src.git
synced 2026-04-24 00:18:23 +02:00
Saki Takamachi
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright (c) The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| https://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Niels Dossche <nielsdos@php.net> |
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+----------------------------------------------------------------------+
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*/
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#include "private.h"
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#ifndef BCMATH_CONVERT_H
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#define BCMATH_CONVERT_H
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char *bc_copy_and_toggle_bcd(char *restrict dest, const char *source, const char *source_end);
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void bc_write_bcd_representation(uint32_t value, char *str);
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BC_VECTOR bc_parse_chunk_chars(const char *str);
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/*
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* Converts bc_num to BC_VECTOR, going backwards from pointer n by the number of
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* characters specified by len.
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*/
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static inline BC_VECTOR bc_partial_convert_to_vector(const char *n, size_t len)
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{
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if (len == BC_VECTOR_SIZE) {
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return bc_parse_chunk_chars(n - BC_VECTOR_SIZE + 1);
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}
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BC_VECTOR num = 0;
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BC_VECTOR base = 1;
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for (size_t i = 0; i < len; i++) {
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num += *n * base;
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base *= BASE;
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n--;
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}
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return num;
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}
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static inline void bc_convert_to_vector(BC_VECTOR *n_vector, const char *nend, size_t nlen)
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{
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size_t i = 0;
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while (nlen > 0) {
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size_t len = MIN(BC_VECTOR_SIZE, nlen);
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n_vector[i] = bc_partial_convert_to_vector(nend, len);
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nend -= len;
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nlen -= len;
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i++;
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}
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}
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#endif
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