xref: /gem5/src/systemc/tests/systemc/communication/sc_signal/datatypes/test02/test02.cpp

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/*****************************************************************************

  test02.cpp --

  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15

 *****************************************************************************/

/*****************************************************************************

  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
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// test of signals with user-defined datatypes
// -- operator =, operator ==, and operator << must be defined
// -- sc_trace() does not have to be defined (unless used)
// -- here, sc_trace() is defined and used

#include "systemc.h"

class my_datatype
{
public:
    my_datatype()
        : m_val( 0 ) {}
    my_datatype( int val_ )
        : m_val( val_ ) {}
    my_datatype( const my_datatype& a )
        : m_val( a.m_val ) {}
    ~my_datatype()
        {}
    my_datatype& operator = ( const my_datatype& a )
        { m_val = a.m_val; return *this; }
    friend bool operator == ( const my_datatype& a, const my_datatype& b )
        { return ( a.m_val == b.m_val ); }
    friend void sc_trace( sc_trace_file* tf, const my_datatype& a,
                          const std::string& name )
        { sc_core::sc_trace( tf, a.m_val, name ); }
    void print( ostream& os ) const
        { os << m_val; }
private:
    int m_val;
};

ostream&
operator << ( ostream& os, const my_datatype& a )
{
    a.print( os );
    return os;
}

int
sc_main( int, char*[] )
{
    my_datatype a( 123 );
    a.print( cout );
    cout << endl;

    sc_signal<my_datatype> sig;

    sc_trace_file* tf = sc_create_vcd_trace_file( "test02" );
    sc_trace( tf, sig, "sig" );
    for( int i = 0; i < 10; ++ i ) {
        sig = my_datatype( 10 - i );
        sc_start( 1, SC_NS );
        cout << sig.read() << endl;
    }
    sc_close_vcd_trace_file( tf );

    return 0;
}