Another attempt to make CUDD platform- and runtime-independent.

src/bdd/cudd/cuddAndAbs.c

@@ -259,7 +259,7 @@ cuddBddAndAbstractRecur(
         }
     }
 
-    if ( manager->TimeStop && manager->TimeStop < clock() )
+    if ( manager->TimeStop && manager->TimeStop < time(NULL) )
         return NULL;
 
     if (topf == top) {

src/bdd/cudd/cuddBddIte.c

@@ -926,7 +926,7 @@ cuddBddAndRecur(
         if (r != NULL) return(r);
     }
 
-    if ( manager->TimeStop && manager->TimeStop < clock() )
+    if ( manager->TimeStop && manager->TimeStop < time(NULL) )
         return NULL;
 
     /* Here we can skip the use of cuddI, because the operands are known

src/bdd/cudd/cuddBridge.c

@@ -976,9 +976,9 @@ cuddBddTransferRecur(
     if (st_lookup(table, (const char *)f, (char **)&res))
         return(Cudd_NotCond(res,comple));
 
-    if ( ddS->TimeStop && ddS->TimeStop < clock() )
+    if ( ddS->TimeStop && ddS->TimeStop < time(NULL) )
         return NULL;
-    if ( ddD->TimeStop && ddD->TimeStop < clock() )
+    if ( ddD->TimeStop && ddD->TimeStop < time(NULL) )
         return NULL;
     
     /* Recursive step. */

src/bdd/cudd/cuddCompose.c

@@ -1251,7 +1251,7 @@ cuddBddVarMapRecur(
         return(Cudd_NotCond(res,F != f));
     }
 
-    if ( manager->TimeStop && manager->TimeStop < clock() )
+    if ( manager->TimeStop && manager->TimeStop < time(NULL) )
         return NULL;
 
     /* Split and recur on children of this node. */

src/bdd/cudd/cuddSymmetry.c

@@ -367,7 +367,7 @@ cuddSymmSifting(
         if (ddTotalNumberSwapping >= table->siftMaxSwap)
             break;
         // enable timeout during variable reodering - alanmi 2/13/11
-        if ( table->TimeStop && table->TimeStop < clock() )
+        if ( table->TimeStop && table->TimeStop < time(NULL) )
             break;
         x = table->perm[var[i]];
 #ifdef DD_STATS