void end(int end_arg);

void end(int exit_code, bool print_err = false,
         const char *message = NULL, ...);

void end(int end_arg)

void end(int exit_code, bool print_error, const char *format, ...)

    std::string error = print_error? strerror(errno) : "";
    

    exit(end_arg);

    if (format)
    {
        va_list arg;
        va_start(arg, format);
        char buffer[500];
        vsnprintf(buffer, sizeof buffer, format, arg);
        va_end(arg);
        
        if (error.empty())
            error = std::string(buffer);
        else
            error = std::string(buffer) + ": " + error;
    }
    if (error.length())
    {
        if (error[error.length() - 1] != '\n')
            error += "\n";
        fprintf(stderr, "%s", error.c_str());
    }
    
    exit(exit_code);

            perror("\nLevel file appears to be invalid.\n");
            end(-1);

            end(-1, false, "\nLevel file appears to be invalid.\n");

            snprintf( info, INFO_SIZE, "\nIncomplete read of \"%s\" - aborting.\n", cha_fil.c_str());
            perror(info);
            end(-1);

            end(-1, false, "\nIncomplete read of \"%s\" - aborting.\n",
                cha_fil.c_str());

        snprintf(info, INFO_SIZE, "Unable to open \"%s\" for writing!",

        end(-1, true, "Unable to open \"%s\" for writing",

        perror(info);
        end(-1);

    if (!charf) {
        snprintf(info, INFO_SIZE, "Unable to open \"%s\" for writing!\n",
                 charFile.c_str());
        perror(info);
        end(-1);
    }

    if (!charf)
        end(-1, true, "Unable to open \"%s\" for writing!\n", charFile.c_str());

    {
        snprintf(info, INFO_SIZE, "Unable to open %s for reading!\n",
                 charFile.c_str() );
        perror(info);
        end(-1);
    }

        end(-1, true, "Unable to open %s for reading!\n", charFile.c_str() );

    {
        snprintf( info, INFO_SIZE, "\nIncomplete read of \"%s\" - aborting.\n",
                  charFile.c_str());
        perror(info);
        end(-1);
    }

        end(-1, false, "\nIncomplete read of \"%s\" - aborting.\n",
            charFile.c_str());

        snprintf( info, INFO_SIZE, "\nSorry, this release cannot read a v%d.%d savefile.\n",

        end(-1, false, "\nSorry, this release cannot read a v%d.%d savefile.\n",

        perror(info);
        end(-1);

        snprintf( info, INFO_SIZE, "\nSorry, this release cannot read a v%d.%d level file.\n",

        end(-1, false,
            "\nSorry, this release cannot read a v%d.%d level file.\n",

        perror(info);
        end(-1);

        fprintf(stderr, "String too long: %d bytes\n", length);
        end(1);

        end(1, false, "String too long: %d bytes\n", length);