1 files changed, 76 insertions, 0 deletions
diff --git a/src/opt/nwk/nwkCheck.c b/src/opt/nwk/nwkCheck.c
new file mode 100644
index 00000000..24a0d513
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+++ b/src/opt/nwk/nwkCheck.c
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+/**CFile****************************************************************
+
+  FileName    [nwkCheck.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Logic network representation.]
+
+  Synopsis    [Consistency checking procedures.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: nwkCheck.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "nwk.h"
+
+ABC_NAMESPACE_IMPL_START
+
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Checking the logic network for consistency.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Nwk_ManCheck( Nwk_Man_t * p )
+{
+    Nwk_Obj_t * pObj, * pNext;
+    int i, k, m;
+    // check if the nodes have duplicated fanins
+    Nwk_ManForEachNode( p, pObj, i )
+    {
+        for ( k = 0; k < pObj->nFanins; k++ )
+            for ( m = k + 1; m < pObj->nFanins; m++ )
+                if ( pObj->pFanio[k] == pObj->pFanio[m] )
+                    printf( "Node %d has duplicated fanin %d.\n", pObj->Id, pObj->pFanio[k]->Id );
+    }
+    // check if all nodes are in the correct fanin/fanout relationship
+    Nwk_ManForEachObj( p, pObj, i )
+    {
+        Nwk_ObjForEachFanin( pObj, pNext, k )
+            if ( Nwk_ObjFanoutNum(pNext) < 100 && Nwk_ObjFindFanout( pNext, pObj ) == -1 )
+                printf( "Nwk_ManCheck(): Object %d has fanin %d which does not have a corresponding fanout.\n", pObj->Id, pNext->Id );
+        Nwk_ObjForEachFanout( pObj, pNext, k )
+            if ( Nwk_ObjFindFanin( pNext, pObj ) == -1 )
+                printf( "Nwk_ManCheck(): Object %d has fanout %d which does not have a corresponding fanin.\n", pObj->Id, pNext->Id );
+    }
+    return 1;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+
+ABC_NAMESPACE_IMPL_END
+