SBRM/RAII for std::va_list/va_start()/va_end use

Question

My code contains snippets like these:

    std::va_list ap;
    va_start(ap, msgfmt);
    snprintf_buf buf;
    const tchar * msg = buf.print_va_list(msgfmt, ap);         


        

Answer 1

One of possible implementations assumes std::va_list = char* and va_end() is just setting that pointer to null. Of cause, it can be called outside of function. But I'm not sure, that it will works similar on other platforms.

Better to wrap this functions with a class.