warning cleanup: signed/unsigned in ternaries.

This is the third round of an effort to enable GCC's -Wextra
option. Instances of signed/unsigned mismatch between
the branches of ternary conditionals are addressed.

* ffi.c (pad_retval): Add cast into the consequent of
the conditional so it yields size_t, like the alternative.

* lib.c (split_str_keep): Likewise.
(vector): Cast -1 to ucnum so it has the same type as the
alloc_plus opposite to it.

* parser.c (lino_getch): Add a cast to wint_t to match
return value and opposite WEOF operand.

* stream.c (generic_get_line): Likewise.

* sysif.c (c_time): Convert both consequent and alternative
to time_t to silence warning.

1 files changed, 1 insertions, 1 deletions

diff --git a/parser.c b/parser.c
index 7e7b0ddb..6372032c 100644
--- a/parser.c
+++ b/parser.c
@@ -1655,7 +1655,7 @@ static wint_t lino_getch(mem_t *stream_in)
   stream = coerce(val, stream_in);
   ch = get_char(stream);
 
-  ret = if3(ch, c_num(ch), WEOF);
+  ret = if3(ch, (wint_t) c_num(ch), WEOF);
 
   uw_catch (sy, va) {
     (void) sy;