Snippets for 4pane 8.0 from FreeBSD 150amd64

Sourced from https://pkg-status.freebsd.org/beefy23/data/latest-per-pkg/4pane/8.0_3/150amd64-default.log.

• MyFrame.cpp:249:37: warning: implicit conversion from 'int' to 'const char' changes value from 255 to -1 [-Wconstant-conversion]
    249 |         { static const char white = 255;
        |                             ~~~~~   ^~~
  

• MyGenericDirCtrl.cpp:1616:5: warning: 'this' pointer cannot be null in well-defined C++ code; pointer may be assumed to always convert to true [-Wundefined-bool-conversion]
   1616 | if(!this) return invalid; // in case we arrived here when there aren't any tabs
        |    ~^~~~
  

• Otherstreams.cpp:106:10: warning: comparison of different enumeration types in switch statement ('lzma_ret' and 'lzma_action') [-Wenum-compare-switch]
    103 | switch (ret_xz) 
        |         ~~~~~~
    104 |   { case LZMA_OK:   break;
    105 | 
    106 |     case LZMA_FINISH:
        |          ^~~~~~~~~~~