1/* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16#include "PublicMethods.h" 17 18uint32_t PublicMethods::Ulltoa(uintptr_t value, int8_t (&rstStr)[MAX_ITOA_BIT]) 19{ 20 const int32_t RADIX_HEXADECIMAL = 16; 21 const int32_t dividendLength = 10; 22 23 auto remainder = value; 24 int8_t strSpace[MAX_ITOA_BIT] = {0}; 25 int8_t* curPoint = strSpace; 26 int64_t dividend = 0; 27 uint32_t rstLength = 0; 28 while (remainder || curPoint == strSpace) { 29 rstLength++; 30 dividend = remainder % RADIX_HEXADECIMAL; 31 remainder = remainder / RADIX_HEXADECIMAL; 32 if (dividend < dividendLength) { // Converted to hexadecimal 33 *curPoint++ = dividend + '0'; 34 } else { 35 *curPoint++ = dividend + 'a' - dividendLength; 36 } 37 } 38 int8_t* tmpRstStr = rstStr; 39 while (curPoint > strSpace) { 40 *tmpRstStr++ = *--curPoint; 41 } 42 *tmpRstStr = 0; 43 return rstLength; 44} 45