test.cpp revision 12855:588919e0e4aa 
1/*****************************************************************************
2
3  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
4  more contributor license agreements.  See the NOTICE file distributed
5  with this work for additional information regarding copyright ownership.
6  Accellera licenses this file to you under the Apache License, Version 2.0
7  (the "License"); you may not use this file except in compliance with the
8  License.  You may obtain a copy of the License at
9
10    http://www.apache.org/licenses/LICENSE-2.0
11
12  Unless required by applicable law or agreed to in writing, software
13  distributed under the License is distributed on an "AS IS" BASIS,
14  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
15  implied.  See the License for the specific language governing
16  permissions and limitations under the License.
17
18 *****************************************************************************/
19
20/*****************************************************************************
21
22  test.cpp --
23
24  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15
25
26 *****************************************************************************/
27
28/*****************************************************************************
29
30  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
31  changes you are making here.
32
33      Name, Affiliation, Date:
34  Description of Modification:
35
36 *****************************************************************************/
37
38/*
39Hi,
40
41Im using SystemC 2.0b2 with gcc 2.95.3 (Linux). If I create an sc_lv
42assignment with range methods on every side like
43
44lv1.range(15,8) = lv2.range(7,0);
45
46and the lv2 vector contains "z", I get the warning message
47
48WARNING: (E2004) sc_bv cannot contain values X and Z :
49 - ../../../../../src/sysc/datatypes/bit/sc_bv.h: 340
50
51and the assignment is not done. Further investigation revealed that the
52vector seems to get mistakenly converted to a sc_bv in between. Removing the
53range method on one side or adding a cast
54
55lv1.range(15,8) = (sc_lv<8>)lv2.range(7,0);
56
57solves that problem.
58
59Regards, S. Heithecker
60*/
61
62#include "systemc.h"
63
64int
65sc_main( int, char*[] )
66{
67    sc_lv<16> a( "01ZX0000111101ZX" );
68    sc_lv<16> b;
69
70    b.range( 15, 8 ) = a.range( 7, 0 );
71    cout << a << endl;
72    cout << b << endl;
73
74    return 0;
75}
76