68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
/**
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* @file cstl_public.c
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* @copyright Copyright (c) Huawei Technologies Co., Ltd. 2021-2021. All rights reserved.
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* @brief cstl_public 公共定义实现源码
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* @details cstl模块公共定义源码
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* @date 2021-05-14
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* @version v0.1.0
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* *******************************************************************************************
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* @par 修改日志：
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* <table>
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* <tr><th>Date <th>Version <th>Author <th>Description
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* </table>
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* *******************************************************************************************
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*/
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#include "cstl_public_inner.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @ingroup cstl
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*/
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__attribute__((visibility("default"))) bool IsMultiOverflow(size_t x, size_t y)
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{
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bool ret = false;
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if ((x > 0) && (y > 0)) {
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ret = ((SIZE_MAX / x) < y) ? true : false;
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}
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return ret;
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}
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/* 加法溢出判断 */
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/**
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* @ingroup cstl
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*/
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__attribute__((visibility("default"))) bool IsAddOverflow(size_t x, size_t y)
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{
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return ((x + y) < x);
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}
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/**
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* @ingroup cstl
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*/
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__attribute__((visibility("default"))) int32_t CstlIntCmpFunc(uintptr_t data1, uintptr_t data2)
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{
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int32_t ret;
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intptr_t key1Value = (intptr_t)data1;
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intptr_t key2Value = (intptr_t)data2;
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if (key1Value > key2Value) {
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ret = 1;
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} else if (key1Value < key2Value) {
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ret = -1;
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} else {
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ret = 0;
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}
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return ret;
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}
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#ifdef __cplusplus
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}
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#endif
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