-Wtype-limits warning in info/infokey.c

[Patrice Dumas]

Hello,

I get this warning:
In file included from ../../info/doc.h:59,
                 from ../../info/infokey.c:21:
../../info/infokey.c: In function ‘compile’:
../../info/infomap.h:105:29: warning: comparison is always true due to limited 
range of data type [-Wtype-limits]
  105 | #define KEYMAP_META(k) ((k) < KEYMAP_META_BASE ? (k) + KEYMAP_META_BASE 
: (k))
      |                             ^
../../info/infokey.c:223:44: note: in expansion of macro ‘KEYMAP_META’
  223 |                       seq[slen++] = meta ? KEYMAP_META(c) : (c); \
      |                                            ^~~~~~~~~~~
../../info/infokey.c:380:21: note: in expansion of macro ‘To_seq’
  380 |                     To_seq (oval);
      |                     ^~~~~~


This is in the code that parses keys.  My feeling is that the code is
ok, macros are used to avoid code duplication an some parts are never
needed but it would not be worth it disentangling the different cases,
but I report here in case it could be of use.

-- 
Pat