c++:读取配置文件

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namespace fs = boost::filesystem;

fs::path objPath = strFilePath; //  strFilePath--目录  

objPath/=strFileName;// strFileName--文件名

if(objPath.is_absplute())

{

　　strFullPath = objPath.string();

　　return; 

}

/* 如果是相对路径，转换为绝对路径*/

string strCurDir=CFileUtil::getCurModuleDir();

if(strCurDir.empty())

{

　　return ;

}

fs::path objFullPath = strCurDir;

objFullPath/=objPath;

strFullPath=objFullPath.string();

return ;

//

std::string CFileUtil::getCurModuleDir()
{
std::string strCurrModuleDirectory;
enum { BUF_LEN = 1024 };
char pcDirectory[BUF_LEN];

::memset(pcDirectory, 0, sizeof(pcDirectory));
#if defined(WIN32)
::GetModuleFileNameA(NULL, pcDirectory, BUF_LEN);
#elif defined(__linux)
readlink("/proc/self/exe", pcDirectory, BUF_LEN);
#elif defined(_AIX)
char relativePath[BUF_LEN];
char psinfo_path[BUF_LEN];
psinfo_t psinfo;
sprintf_s(psinfo_path, BUF_LEN, "/proc/%d/psinfo", getpid());
int fd;
ssize_t bytes_read;
fd = open(psinfo_path, O_RDONLY);
if (fd != -1)
{
bytes_read = read(fd, (void *)(&psinfo), sizeof(psinfo_t));
if (bytes_read > 0)
{
char shell_command[BUF_LEN];
sprintf(shell_command, "which %s 2>/dev/null", psinfo.pr_fname);

//调用 shell命令从环境变量中查找当前程序所在的绝对路径。
FILE *fp = popen(shell_command, "r");

if (fp != NULL)
{
fgets(pcDirectory, sizeof(pcDirectory), fp);
pclose(fp);
}

if (pcDirectory[0] != ‘/‘) //如果没有找到
{
char*** pArgv = (char***)psinfo.pr_argv;

if (pArgv[0][0][0] == ‘/‘)
{
strcpy(relativePath, pArgv[0][0]);
}
else
{
getcwd(relativePath, BUF_LEN);
strcat(relativePath, "/");
strcat(relativePath, pArgv[0][0]);
}
realpath((const char*)relativePath, (char*)pcDirectory);
}
}
else
{
close(fd);
return "";
}

close(fd);
}
else
{
return "";
}
#elif defined(__sun)
char pCurrentPath[BUF_LEN];
char pExecPath[BUF_LEN];
const char *p = getexecname();
getcwd(pCurrentPath, BUF_LEN);
strcpy(pExecPath, p);
if (pExecPath[0] == ‘/‘)
{
strcpy(pcDirectory, pExecPath);
}
else
{
strcat(pCurrentPath, "/");
strcat(pCurrentPath, pExecPath);
strcpy(pcDirectory, pCurrentPath);
}
#endif
for (int i = (int)strlen(pcDirectory); i >= 0; i--)
{
#if defined(WIN32)
if (pcDirectory[i] == ‘\\‘)
#else
if (pcDirectory[i] == ‘/‘)
#endif
{
pcDirectory[i + 1] = ‘\0‘;
break;
}
}
return pcDirectory;
}

c++:读取配置文件

标签：pac   lin   empty   turn   目录   fine   man   绝对路径   set   

原文地址：https://www.cnblogs.com/1521299249study/p/10178369.html