Re: [PATCH] cex: fix leaks

[Akim Demaille]

> Le 17 mai 2020 à 16:31, Akim Demaille <a...@lrde.epita.fr> a écrit :
> 
> Your patch improves things: we go from 
> 
> SUMMARY: AddressSanitizer: 262960 byte(s) leaked in 1874 allocation(s).
> 
> to
> 
> SUMMARY: AddressSanitizer: 187064 byte(s) leaked in 779 allocation(s).
> 
> The following commit reduces it further to
> 
> SUMMARY: AddressSanitizer: 184968 byte(s) leaked in 648 allocation(s).

The following one reaches

SUMMARY: AddressSanitizer: 11352 byte(s) leaked in 263 allocation(s).

after addressing a very simple mistake.

commit a27143632de930f0ceea7fb7ff4d0cc492cf4c9d
Author: Akim Demaille <akim.demai...@gmail.com>
Date:   Sun May 17 16:41:51 2020 +0200

    cex: properly reclaim hash's allocated memory
    
    * src/state-item.c: Use hash_free where appropriate.

diff --git a/src/state-item.c b/src/state-item.c
index bcb21102..76c0b4f2 100644
--- a/src/state-item.c
+++ b/src/state-item.c
@@ -77,7 +77,7 @@ hash_pair_lookup (Hash_table *tab, int key)
 static void
 hash_pair_insert (Hash_table *tab, int key, bitset val)
 {
-  hash_pair *hp = xmalloc (sizeof (hash_pair));
+  hash_pair *hp = xmalloc (sizeof *hp);
   hp->key = key;
   hp->l = val;
   hash_pair *res = hash_xinsert (tab, hp);
@@ -234,7 +234,7 @@ init_trans (void)
                 }
             }
         }
-      free (transition_set);
+      hash_free (transition_set);
     }
 }
 
@@ -304,7 +304,7 @@ init_prods (void)
                 bitset_set (si_revs[prod], j);
             }
         }
-      free (closure_map);
+      hash_free (closure_map);
     }
 }