Added several new APIs to GIA and for file management.

src/aig/gia/gia.h

@@ -472,12 +472,20 @@ static inline int Gia_ManAppendCo( Gia_Man_t * p, int iLit0 )
         Gia_ObjAddFanout( p, Gia_ObjFanin0(pObj), pObj );
     return Gia_ObjId( p, pObj ) << 1;
 }
+static inline int Gia_ManAppendOr( Gia_Man_t * p, int iLit0, int iLit1 )
+{
+    return Abc_LitNot(Gia_ManAppendAnd( p, Abc_LitNot(iLit0), Abc_LitNot(iLit1) ));
+}
 static inline int Gia_ManAppendMux( Gia_Man_t * p, int iCtrl, int iData1, int iData0 )  
 { 
     int iTemp0 = Gia_ManAppendAnd( p, Abc_LitNot(iCtrl), iData0 );
     int iTemp1 = Gia_ManAppendAnd( p, iCtrl, iData1 );
     return Abc_LitNotCond( Gia_ManAppendAnd( p, Abc_LitNot(iTemp0), Abc_LitNot(iTemp1) ), 1 );
 }
+static inline int Gia_ManAppendXor( Gia_Man_t * p, int iLit0, int iLit1 )  
+{ 
+    return Gia_ManAppendMux( p, iLit0, Abc_LitNot(iLit1), iLit1 );
+}
 
 #define GIA_ZER 1
 #define GIA_ONE 2
@@ -728,6 +736,7 @@ extern void                Gia_ManHashAlloc( Gia_Man_t * p );
 extern void                Gia_ManHashStart( Gia_Man_t * p ); 
 extern void                Gia_ManHashStop( Gia_Man_t * p );  
 extern int                 Gia_ManHashAnd( Gia_Man_t * p, int iLit0, int iLit1 ); 
+extern int                 Gia_ManHashOr( Gia_Man_t * p, int iLit0, int iLit1 ); 
 extern int                 Gia_ManHashXor( Gia_Man_t * p, int iLit0, int iLit1 ); 
 extern int                 Gia_ManHashMux( Gia_Man_t * p, int iCtrl, int iData1, int iData0 );
 extern int                 Gia_ManHashAndTry( Gia_Man_t * p, int iLit0, int iLit1 );

src/aig/gia/giaHash.c

@@ -511,6 +511,10 @@ int Gia_ManHashAnd( Gia_Man_t * p, int iLit0, int iLit1 )
         }
     }
 }
+int Gia_ManHashOr( Gia_Man_t * p, int iLit0, int iLit1 )  
+{ 
+    return Abc_LitNot(Gia_ManHashAnd( p, Abc_LitNot(iLit0), Abc_LitNot(iLit1) ));
+}
 
 /**Function*************************************************************
 

src/misc/extra/extra.h

@@ -107,7 +107,9 @@ extern char *       Extra_FileNameGenericAppend( char * pBase, char * pSuffix );
 extern int          Extra_FileCheck( char * pFileName );
 extern int          Extra_FileSize( char * pFileName );
 extern char *       Extra_FileRead( FILE * pFile );
+extern char *       Extra_FileRead2( FILE * pFile, FILE * pFile2 );
 extern char *       Extra_FileReadContents( char * pFileName );
+extern char *       Extra_FileReadContents2( char * pFileName, char * pFileName2 );
 extern int          Extra_FileIsType( char * pFileName, char * pS1, char * pS2, char * pS3 );
 extern char *       Extra_TimeStamp();
 extern char *       Extra_StringAppend( char * pStrGiven, char * pStrAdd );

src/misc/extra/extraUtilFile.c

@@ -276,6 +276,28 @@ char * Extra_FileRead( FILE * pFile )
     pBuffer[ nFileSize + 1] = '\0';
     return pBuffer;
 }
+char * Extra_FileRead2( FILE * pFile, FILE * pFile2 )
+{
+    char * pBuffer;
+    int nSize, nSize2;
+    int RetValue;
+    // get the file size, in bytes
+    fseek( pFile, 0, SEEK_END );  
+    nSize = ftell( pFile );  
+    rewind( pFile ); 
+    // get the file size, in bytes
+    fseek( pFile2, 0, SEEK_END );  
+    nSize2 = ftell( pFile2 );  
+    rewind( pFile2 ); 
+    // load the contents of the file into memory
+    pBuffer = ABC_ALLOC( char, nSize + nSize2 + 3 );
+    RetValue = fread( pBuffer,         nSize,  1, pFile );
+    RetValue = fread( pBuffer + nSize, nSize2, 1, pFile2 );
+    // terminate the string with '\0'
+    pBuffer[ nSize + nSize2 + 0] = '\n';
+    pBuffer[ nSize + nSize2 + 1] = '\0';
+    return pBuffer;
+}
 
 /**Function*************************************************************
 
@@ -294,8 +316,18 @@ char * Extra_FileReadContents( char * pFileName )
     char * pBuffer;
     pFile = fopen( pFileName, "rb" );
     pBuffer = pFile ? Extra_FileRead( pFile ) : NULL;
-    if ( pFile )
-        fclose( pFile );
+    if ( pFile )  fclose( pFile );
+    return pBuffer;
+}
+char * Extra_FileReadContents2( char * pFileName, char * pFileName2 )
+{
+    FILE * pFile, * pFile2;
+    char * pBuffer;
+    pFile  = fopen( pFileName, "rb" );
+    pFile2 = fopen( pFileName2, "rb" );
+    pBuffer = (pFile && pFile2) ? Extra_FileRead2( pFile, pFile2 ) : NULL;
+    if ( pFile )  fclose( pFile );
+    if ( pFile2 ) fclose( pFile2 );
     return pBuffer;
 }