• Manish Goregaokar's avatar
    Initialize strtok_r's saveptr to NULL · 9bf74fb2
    Manish Goregaokar authored
    Building gdb with --enable-build-with-cxx=no trips on a warning:
     ../../binutils-gdb/gdb/rust-lang.c:173:15: error: saveptr may be used
     uninitialized in this function [-Werror=maybe-uninitialized]
         ret.name = concat (TYPE_NAME (type), "::", token, (char *) NULL);
    The problem is that gcc doesn't understand that "tail" can never be
    NULL in the call to strtok_r:
          name = xstrdup (TYPE_FIELD_NAME (type, 0));
          cleanup = make_cleanup (xfree, name);
          tail = name + strlen (RUST_ENUM_PREFIX);
          for (token = strtok_r (tail, "$", &saveptr);
    Fix this by always initializing saveptr.
    2016-06-29  Manish Goregaokar  <manish@mozilla.com>
        * rust-lang.c (rust_get_disr_info): Initialize saveptr to NULL.