istreambuf_iteratorchar (file) does not work on android NDK

Well I have a project of a gameboy emulator for android, I'm writing using the android NDK for the emulation part, and the java for the graphic interface itself.

Well first I started writing a small class to read retrieve the cartridge header information.

When I use:

        __android_log_write(ANDROID_LOG_DEBUG, "File name", m_FileName);
        std::fstream cartFile(m_FileName, std::ios::in | std::ios::binary);

        if(!cartFile.bad()){

            std::string content((std::istreambuf_iterator<char>(cartFile)), (std::istreambuf_iterator<char>()));
            __android_log_print(ANDROID_LOG_DEBUG, "Cart", "Content: %s", content.c_str());
        }

        cartFile.close();

The output is simply absolutely nothing.

But when I use getline:

            std::string content;
            while(!cartFile.eof()){
                std::getline(cartFile, content);
                __android_log_print(ANDROID_LOG_DEBUG, "Cart", "Content: %s", content.c_str());
            }

I have the following output:

Thatis,thefileisreadinastringasitshouldbedone,rightafteritisreadIplantostorethecontentsinanunsignedchararraysothatIcanmanipulatetheromandstartworkingontheheader.

AlltheinformationtowritethisemulatorIamremovingfromthissite: link And from this manual: link

It also guides me through open source gameboy emulators in github.