add a comment that memcmp is not hostile here

[r19466]

diff --git a/ir/ident/ident.c b/ir/ident/ident.c
index b8cbd83..47838da 100644 (file)
--- a/ir/ident/ident.c
+++ b/ir/ident/ident.c
@@ -282,6 +282,7 @@ void init_ident(ident_if_t *id_if, int initial_n_idents)
    impl.get_id_wcslen      = set_get_id_wcslen;
 #endif /* FIRM_ENABLE_WCHAR */
 
+   /* it's ok to use memcmp here, we check only strings */
    impl.handle = new_set(memcmp, initial_n_idents);
   }
 }