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, 1 insertions, 1 deletions

diff --git a/mpi/mpi.c b/mpi/mpi.c
index a1541d8b..34003253 100644
--- a/mpi/mpi.c
+++ b/mpi/mpi.c
@@ -421,7 +421,7 @@ mp_err mp_set_uintptr(mp_int *mp, uint_ptr_t z)
 
 mp_err mp_set_intptr(mp_int *mp, int_ptr_t z)
 {
-  uint_ptr_t w = z;
+  uint_ptr_t w = convert(uint_ptr_t, z);
   uint_ptr_t v = z >= 0 ? w : -w;
   mp_err err = mp_set_uintptr(mp, v);