xref: /gem5/src/systemc/tests/systemc/kernel/sc_time/test19/test19.cpp

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  with this work for additional information regarding copyright ownership.
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  distributed under the License is distributed on an "AS IS" BASIS,
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/*****************************************************************************

  test19.cpp -- Test sc_time string/tuple conversions

  Original Author: Philipp A. Hartmann, OFFIS

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


#include "systemc.h"

void check_time( const sc_time& t, sc_time_unit tu, const std::string & str )
{
    sc_time_tuple tp = t;

    std::cout << t.to_string() << ", value=" << t.value() << std::endl;
    std::cout << "  ";
    if( tp.has_value() )
        std::cout << "t.value=" << tp.value();
    else
        std::cout << "t.double=" << tp.to_double();
    std::cout << ", t.unit="  << tp.unit_symbol()
              << std::endl;

    sc_assert( tp.has_value() );
    sc_assert( t.to_string() == str );
    sc_assert( tp.to_string() == t.to_string() );
    sc_assert( tp.unit() == tu );

    sc_time u = sc_time::from_string( str.c_str() );
    sc_assert( t == u );
    sc_assert( u == tp );
    sc_assert( tp.unit() == sc_time_tuple(u).unit() );

    u = sc_time( tp.to_double(), tp.unit_symbol() );
    sc_assert( t == u );
    sc_assert( u == tp );
    sc_assert( tp.unit() == sc_time_tuple(u).unit() );
}

int sc_main( int, char*[] )
{
    sc_report_handler::set_actions( SC_ID_SET_TIME_RESOLUTION_, SC_DO_NOTHING );
    sc_report_handler::set_actions( SC_ID_TIME_CONVERSION_FAILED_, SC_DISPLAY );

    unsigned resolutions[] = { 100, 10, 1 };
    sc_time_unit resunit   = SC_FS;
    unsigned* res = resolutions;

    while( true )
    {
        std::cout << "\nResolution = " << sc_get_time_resolution() << std::endl;

        check_time( sc_time(  10,   SC_NS),  SC_NS,  "10 ns" );
        check_time( sc_time( 100,   SC_NS),  SC_NS, "100 ns" );
        check_time( sc_time(1000,   SC_NS),  SC_US,   "1 us" );
        check_time( sc_time(   0.1, SC_US),  SC_NS, "100 ns" );
        check_time( sc_time(   1,   SC_US),  SC_US,   "1 us" );
        check_time( sc_time(  10,   SC_US),  SC_US,  "10 us" );
        check_time( sc_time( 100,   SC_US),  SC_US, "100 us" );
        check_time( sc_time(1000,   SC_US),  SC_MS,   "1 ms" );
        check_time( sc_time( 100,  SC_SEC), SC_SEC, "100 s" );

        // exit loop before final resolution update
        if (res == resolutions + (sizeof(resolutions)/sizeof(*resolutions)))
            break;

        sc_set_time_resolution( *res, resunit );
        res++;
    }

    cout << "\nProgram completed" << endl;
    return 0;
}