3 files changed, 40 insertions, 3 deletions
diff --git a/src/misc/extra/extra.h b/src/misc/extra/extra.h
index 1fff12d5..4aa2c816 100644
--- a/src/misc/extra/extra.h
+++ b/src/misc/extra/extra.h
@@ -110,6 +110,7 @@ typedef unsigned long long uint64;
 
 #ifndef PRT
 #define PRT(a,t)  printf("%s = ", (a)); printf("%6.2f sec\n", (float)(t)/(float)(CLOCKS_PER_SEC))
+#define PRTn(a,t)  printf("%s = ", (a)); printf("%6.2f sec  ", (float)(t)/(float)(CLOCKS_PER_SEC))
 #endif
 
 #ifndef PRTP
diff --git a/src/misc/extra/extraUtilFile.c b/src/misc/extra/extraUtilFile.c
index 14c987e8..e2f0bcd4 100644
--- a/src/misc/extra/extraUtilFile.c
+++ b/src/misc/extra/extraUtilFile.c
@@ -324,9 +324,11 @@ void Extra_PrintBinary( FILE * pFile, unsigned Sign[], int nBits )
 ***********************************************************************/
 int Extra_ReadHexadecimal( unsigned Sign[], char * pString, int nVars )
 {
-    int nDigits, Digit, k, c;
-    Sign[0] = 0;
-    // write the number into the file
+    int nWords, nDigits, Digit, k, c;
+    nWords = Extra_TruthWordNum( nVars );
+    for ( k = 0; k < nWords; k++ )
+        Sign[k] = 0;
+    // read the number from the string
     nDigits = (1 << nVars) / 4;
     for ( k = 0; k < nDigits; k++ )
     {
diff --git a/src/misc/vec/vecPtr.h b/src/misc/vec/vecPtr.h
index c6b8defb..6b23d1ac 100644
--- a/src/misc/vec/vecPtr.h
+++ b/src/misc/vec/vecPtr.h
@@ -425,6 +425,40 @@ static inline void Vec_PtrFillExtra( Vec_Ptr_t * p, int nSize, void * Entry )
 
 /**Function*************************************************************
 
+  Synopsis    [Returns the entry even if the place not exist.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+static inline void * Vec_PtrGetEntry( Vec_Ptr_t * p, int i )
+{
+    Vec_PtrFillExtra( p, i + 1, NULL );
+    return Vec_PtrEntry( p, i );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Inserts the entry even if the place does not exist.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+static inline void Vec_PtrSetEntry( Vec_Ptr_t * p, int i, void * Entry )
+{
+    Vec_PtrFillExtra( p, i + 1, NULL );
+    Vec_PtrWriteEntry( p, i, Entry );
+}
+
+/**Function*************************************************************
+
   Synopsis    []
 
   Description []