Access violation in "string", line 503

[jaye]

Hello...

Recently, I've been having problems with my cout stream when using SystemC. Usually, I just use another stream instead or write to the console using printf as a hotfix, but now SystemC started causing this problem itself, leaving me kind of helpless...

I am using MS Visual Studio 2010. The following project compiles fine using SystemC 2.3.0, but as sc_clock is deprecated, it tries to print some warning about that in the console:

#include <iostream>
#include <systemc.h>
using namespace std;

int sc_main (int argc, char* argv[])
{
sc_clock clk("Clock",1);

return 0;
}

When running the resulting project, I'm getting an access violation with the following stack trace (sorry for the messages being German, I hope you can get the gist out of this):

> TestProjectCpp.exe!std::operator<<<char,std::char_traits<char>,std::allocator<char> >(std::basic_ostream<char,std::char_traits<char> > & _Ostr, const std::basic_string<char,std::char_traits<char>,std::allocator<char> > & _Str)  Zeile 503 + 0xf Bytes C++
 TestProjectCpp.exe!sc_core::sc_report_handler::default_handler(const sc_core::sc_report & rep, const unsigned int & actions)  Zeile 119 + 0x5d Bytes C++
 TestProjectCpp.exe!sc_core::sc_report_handler::report(sc_core::sc_severity severity_, const char * msg_type_, const char * msg_, const char * file_, int line_)  Zeile 309 + 0x10 Bytes C++
 TestProjectCpp.exe!sc_core::sc_clock::sc_clock(const char * name_, double period_, double duty_cycle_, double start_time_, bool posedge_first_)  Zeile 187 + 0x1f Bytes C++
 TestProjectCpp.exe!sc_main(int argc, char * * argv)  Zeile 9 C++
 TestProjectCpp.exe!sc_elab_and_sim(int argc, char * * argv)  Zeile 81 + 0x20 Bytes C++
 TestProjectCpp.exe!main(int argc, char * * argv)  Zeile 34 + 0xd Bytes C++
 TestProjectCpp.exe!__tmainCRTStartup()  Zeile 555 + 0x19 Bytes C
 TestProjectCpp.exe!mainCRTStartup()  Zeile 371 C
 kernel32.dll!75f433aa()
 [unten angegebene Rahmen sind möglicherweise nicht korrekt und/oder fehlen, keine Symbole geladen für kernel32.dll]
 ntdll.dll!76f89ef2()
 ntdll.dll!76f89ec5()

Basically, it's always reporting the line after instanciating sc_clock. The stack trace then points at sc_clock.cpp at

SC_REPORT_INFO(SC_ID_IEEE_1666_DEPRECATION_,
"\n	sc_clock(const char*, double, double, double, bool)\n"
"	is deprecated use a form that includes sc_time or\n"
"	sc_time_unit");

then to sc_report_handler.cpp at line 309

handler(rep, actions);

and at line 119

if ( actions & SC_DISPLAY )
::std::cout << ::std::endl << sc_report_compose_message(rep) <<
 ::std::endl;

The last line being reported is in "string", line 503, which just reads

if (!_Ok)

The debugger states that _Ok is set to true.

I'm really lost here. Any help on how to fix this would be greatly appreciated.

[David Black]

First, sc_clock is NOT deprecated, but rather the constructor signature (syntax) you are using is.

Change

sc_clock clk("Clock",1);

to

sc_clock clk("Clock",1,SC_NS);

or

sc_clock clk("Clock",sc_time(1,SC_NS));

[Philipp A Hartmann]

Problems in the C++ standard library usually indicate a problem in your environment configuration. Make sure that the compiler options (inclusing #defines) used within your SystemC project match the ones used during the compilation of the SystemC library itself.

[jaye]

I double-checked the project properties... They're pretty much the same. But as the non-deprecated compiler fixed it, I guess I'm more or less fine. Thanks for the help