SC_VECTOR declaration causes Exception thrown.

[Aaron Yang]

Hey guys,

Need help about this:

Exception thrown at 0x00007FFC1FCE1CAF (ntdll.dll) in mytest.exe: 0xC0000005: Access violation reading location 0x0000000000000000.

I traced the call stack to where it stopped in my code, found it's this line in header file:

sc_vector<sc_signal<float>> output_connect_wire{"output_connect_wire",1};

It's been used like this in cpp file, not sure if it's relevant though:

....
submodule->O_data(output_connect_wire);
....
if(...){...}
else {
	data_out.write(output_conncet_wire[0].read());
}
....

 where the submodule output declared as sc_vector<sc_out<float>> O_data{"O_data",1};

 

Thank you in advance and tell me if you need any more info to identify the issue.
 

[Roman Popov]

Quote

Access violation reading location 0x0000000000000000.

Looks like null pointer dereference.   

I don't immediately see a problem in code samples you provide. Probably bug is somewhere else. Use debugger to identify the root cause of problem.