Compiler warnings.

Author: alanminko

.gitignore

@@ -13,6 +13,7 @@ lib/m114*
 lib/bip*
 docs/
 .vscode/
+.cache/
 
 src/ext*
 src/xxx/

src/map/if/acd/ac_decomposition.hpp

@@ -510,7 +510,7 @@ class ac_decomposition_impl
       }
     } while ( combinations_offset_next( free_set_size, offset, pComb, pInvPerm, tt ) );
 
-    std::array<uint32_t, max_num_vars> res_perm;
+    std::array<uint32_t, max_num_vars> res_perm = {0};
 
     if ( best_cost > ( 1 << ( ps.lut_size - free_set_size ) ) )
     {
@@ -543,7 +543,7 @@ class ac_decomposition_impl
     }
 
     /* enumerate combinations */
-    std::array<uint32_t, max_num_vars> res_perm;
+    std::array<uint32_t, max_num_vars> res_perm = {0};
 
     do
     {

src/opt/fxu/fxuReduce.c

@@ -84,6 +84,8 @@ int Fxu_PreprocessCubePairs( Fxu_Matrix * p, Vec_Ptr_t * vCovers, int nPairsTota
                 nBitsMax = nFanins;
         }
     assert( iPair == nPairsTotal );
+    if ( nBitsMax == -1 )
+        nBitsMax = 0;
 
     // allocate storage for counters of cube pairs by difference
     pnPairCounters = ABC_CALLOC( int, 2 * nBitsMax );