Fix various instances of implicit conversions.

The implicit conversions were discovered with Clang's UBSan (with
the -fsanitizer=implicit-conversion option).

* gc.c (sweep_one): Convert only the inverted REACHABLE, since
block->t.type is already of the right type.

* hash.c (eql_hash, eq_hash, hash_iter_init, us_hash_iter_init):
Explicitly convert to ucnum.

* linenoise/linenoise.c (enable_raw_mode): Explicitly convert the
inverted flag sets to tcflag_t.

* mpi/mpi.c (mp_set_uintptr): Explicitly convert to uint_ptr_t.

* regex.c (char_set_add): Explicitly convert to bitcell_t.

* struct.c (struct_inst_hash): Correct type of hash from cnum to
ucnum.

1 files changed, 2 insertions, 1 deletions

diff --git a/regex.c b/regex.c
index a9ac0a5c..1d971625 100644
--- a/regex.c
+++ b/regex.c
@@ -597,7 +597,8 @@ static void char_set_add(char_set_t *set, wchar_t ch)
     /* fallthrough */
   case CHSET_SMALL:
     assert (ch < 256);
-    set->s.bitcell[CHAR_SET_INDEX(ch)] |= (1 << CHAR_SET_BIT(ch));
+    set->s.bitcell[CHAR_SET_INDEX(ch)] |=
+      convert(bitcell_t, 1) << CHAR_SET_BIT(ch);
     break;
   case CHSET_LARGE:
     assert (ch < 0x10000);