xref: /gem5/src/systemc/tests/systemc/misc/stars/star129901/test.cpp

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

  test.cpp --

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

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

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  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
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/*
I found this while trying to improve coverage of the SystemC regression tests.

Compile the following program, bug.cpp, with

g++ -g -I /u/scp/src/systemc-2.0/include bug.cpp /u/scp/src/systemc-2.0/lib-gccsparcOS5/libsystemc.a
(in mountain view, elsewhere use SYSTEMC_HOME pointing to the 2.0 release)

-------------------------------------------------------------------------------
*/

#define SC_INCLUDE_FX 1
#include "systemc.h"

double bug()
{
    sc_fxval_fast fast(2);
    sc_fxval slow(1);
    fast  = slow;
    fast += slow;
    fast -= slow;
    fast *= slow;
    fast /= slow;
    return fast.to_double();
}

int sc_main(int, char*[])
{
    cout << bug() << endl;
    return 0;
}

/*
-------------------------------------------------------------------------------
It fails to link, giving the message

Undefined                       first referenced
 symbol                             in file
sc_fxval_fast::operator+=(sc_fxval const &)      /var/tmp/ccNbIiHN.o
sc_fxval_fast::operator-=(sc_fxval const &)       /var/tmp/cclXNLsO.o
sc_fxval_fast::operator/=(sc_fxval const &)      /var/tmp/cclXNLsO.o
sc_fxval_fast::operator*=(sc_fxval const &)       /var/tmp/cclXNLsO.o
*/