1. 关键词
关键词:
C++ 系统调用 CPU架构 指令集 跨平台
实现原理:
- Unix-like 系统: 可以通过
uname -m
命令获取 CPU 架构类型。 - Windows 系统: 可以通过环境变量
PROCESSOR_ARCHITECTURE
获取 CPU 架构类型。
2. sysutil.h
#pragma once
#include <cstdint>
#include <string>
namespace cutl
{
/**
* @brief Get the architecture of the cpu processor(or operating system).
*
* @return std::string the architecture.
*/
std::string architecture();
} // namespace cutl
3. sysutil.cpp
#include <map>
#include <iostream>
#include <strutil.h>
#include <cstdlib>
#include "sysutil.h"
#include "inner/logger.h"
#include "inner/system_util.h"
#include "inner/filesystem.h"
namespace cutl
{
std::string architecture()
{
#if defined(_WIN32) || defined(__WIN32__)
return cutl::getenv("PROCESSOR_ARCHITECTURE", "");
#else
static std::string arch;
if (arch.empty())
{
std::string cmd = "uname -m";
callcmd(cmd, arch);
CUTL_DEBUG("cmd: " + cmd + ", result: " + arch);
}
return arch;
#endif
}
} // namespace cutl
4. 测试代码
#include "common.hpp"
#include "sysutil.h"
void TestArchitecture()
{
PrintSubTitle("TestArchitecture");
std::cout << "OS architecture: " << cutl::architecture() << std::endl;
}
5. 运行结果
------------------------------------------TestArchitecture------------------------------------------
OS architecture: x86_64
6. 源码地址
更多详细代码,请查看本人写的C++ 通用工具库: common_util, 本项目已开源,代码简洁,且有详细的文档和Demo。
标签:sysutil,std,cutl,C++,architecture,指令集,include,CPU From: https://www.cnblogs.com/luoweifu/p/18264077