libconfig库中,readFile读了.cfg文件，但是却不能正确查找节点？？？
大牛们，在调试一个别人的程序，从linux移植来的，里边用到了libconfig库。
在调试的时候，发现总是中途退出，单步发现，一开始运行readFile时，就没有读对，存储.cfg文件的内存在执行readFile前后没有变化，捕捉异常也没有捕捉到
贴出代码，希望大牛们能帮忙解决
声明：
protected:
libconfig::Config m_configFile;
Parameters::Parameters(const std::string& confFile) : m_filename(confFile)
{
try{
m_configFile.readFile(m_filename.c_str());
} catch (libconfig::ParseException& e) {
std::cout << "Error reading Configuration file (" << m_filename << ")!" << std::endl;
std::cout << "ParseException at Line " << e.getLine() << ": " << e.getError() << std::endl;
exit(EXIT_FAILURE);
} catch (libconfig::SettingException& e) {
std::cout << "Error reading Configuration file (" << m_filename << ")!" << std::endl;
std::cout << "SettingException at " << e.getPath() << std::endl;
exit(EXIT_FAILURE);
} catch (std::exception& e) {
std::cout << "Error reading Configuration file (" << m_filename << ")!" << std::endl;
std::cout << e.what() << std::endl;
exit(EXIT_FAILURE);
} catch (...) {
std::cout << "Error reading Configuration file (" << m_filename << ")!" << std::endl;
std::cout << "Unknown Exception" << std::endl;
exit(EXIT_FAILURE);
}
}
std::string seq_name = hp.readStringParameter("Tracker.Name");
std::string Parameters::readStringParameter(std::string param_name) const
{
try{
return std::string((const char*)m_configFile.lookup(param_name));
} catch (libconfig::ParseException& e) {
std::cout << "Error reading Configuration file (" << m_filename << ")!" << std::endl;
std::cout << "ParseException at Line " << e.getLine() << ": " << e.getError() << std::endl;
exit(EXIT_FAILURE);
} catch (libconfig::SettingException& e) {
std::cout << "Error reading Configuration file (" << m_filename << ")!" << std::endl;
std::cout << "SettingException at " << e.getPath() << std::endl;
exit(EXIT_FAILURE);
} catch (std::exception& e) {
std::cout << "Error reading Configuration file (" << m_filename << ")!" << std::endl;
std::cout << e.what() << std::endl;
exit(EXIT_FAILURE);
} catch (...) {
std::cout << "Error reading Configuration file (" << m_filename << ")!" << std::endl;
std::cout << "Unknown Exception" << std::endl;
exit(EXIT_FAILURE);
}
}