set_bit          1932 src/editfns.c  #define NOTE_DELETE(ctx, xoff) set_bit ((ctx)->deletions, xoff)
set_bit          1933 src/editfns.c  #define NOTE_INSERT(ctx, yoff) set_bit ((ctx)->insertions, yoff)
set_bit          1937 src/editfns.c  static void set_bit (unsigned char *, OFFSET);