返回真还是返回假?魔法

我在c++程序中有问题，用于从VoIP数据包中提取音频。

它在Linux和amd64和x86的OpenBSD上运行得很好，但是当我在ARM的OpenBSD上运行程序时，它真的很神奇。

我在LoadConfigFile中调用返回true，在ProcessConfiguration中调用返回false。

有谁能帮帮我吗?也许我只是个真正的盲人。我用代码做了很多测试打印。

这是调用ProcessConfiguration函数的程序的主要函数。

int main ( int argc, char **argv ) {
    if ( ! config.ProcessConfiguration( argc, argv ) ) {
        std::cout << "process configuration failed" << std::endl;
        std::cout << "exiting whole program with EXIT_FAILURE" << std::endl;
        return EXIT_FAILURE;
    }
    std::cout << "process configuration is true" << std::endl;
    // User want to only print configuration
    if ( config.m_printconfig == true ) {
        config.PrintConfig();
        return EXIT_SUCCESS;
    }
    .
    . // Long uninteresting code
    .
    return EXIT_SUCCESS;
}

这是调用LoadConfigFile的processconfiguration函数。

bool TConfig::ProcessConfiguration ( int & argc, char ** & argv ) {
    // Scan options from command line
    int c;
    while (( c = getopt ( argc, argv, "c:dhn" )) != EOF ) {
        switch (c) {
        case 'c':
            m_configfile = optarg;
            break;
        case 'd':
            m_daemon = false;
            break;
        case 'h':
            m_printusage = true;
            return true;
        case 'n':
            m_printconfig = true;
            break;
        default:
            return false;
        }
    }
    argc -= optind;
    argv += optind;
    if ( LoadConfigFile() == false ) {
        std::cout << "LoadConfigFile was false" << std::endl;
        return false;
    }
    std::cout << "LoadConfigFile was true" << std::endl;
    return true;
}

这个函数加载配置文件并解析所有的指令。

bool TConfig::LoadConfigFile ( void ) {
    std::string line;
    std::string directive;
    std::ifstream data;
    if ( m_configfile.empty() ) {
        m_configfile = DEFAULT_CONFIGFILE;
    }
    std::cout << "opening file " << m_configfile << std::endl;
    data.open( m_configfile.c_str() );
    if ( ! data.is_open() ) {
        std::cerr << "Couldn't open config " << m_configfile << std::endl;
        return false;
    }
    std::cout << "configfile is open" << std::endl;
    std::cout << "before getline" << std::endl;
    while ( getline( data, line ) ) {
        std::cout << "after getline" << std::endl;
        trim_whitespaces( line );
        .
        . // Long uninteresting code
        .
    }
    std::cout << "before data.close" << std::endl;
    data.close();
    std::cout << "before return true in LoadConfigFile" << std::endl;
    return true;
}

这是终端的输出。

$ ./call-extract -c call-extract.conf -d -n 
opening file call-extract.conf
configfile is open
before getline
before data.close
before return true in LoadConfigFile
LoadConfigFile was false
process configuration failed
exiting whole program with EXIT_FAILURE
$ echo $?
1
$ 

我在LoadConfigFile中调用返回true，在ProcessConfiguration中调用返回false。

before return true in LoadConfigFile
LoadConfigFile was true

struct TConfig
{
    bool ProcessConfiguration()
    {
        bool rv = true;
        if( !LoadConfigFile() ) { rv = false; }
        printf("LoadConfigFile was %sn", rv?"true":"false" );
        return rv;
    }
    bool LoadConfigFile ( void )
    {
        printf("before return true in LoadConfigFilen");
        return true;
    }
};
void fv()
{
    TConfig config; config.ProcessConfiguration();
}