Unable to initialize a vector of integers

[otl0rz]

I am trying to initialize a sc_vector of sc_uint<8>, but I always get this error message:

Error: (E403) conversion failed: character string 'test_0' is not valid
In file: ../../../src/sysc/datatypes/int/sc_uint_base.cpp:530

 

I don't get an error with the same approach but using sc_lv instead.

Here's a minimal code example to reproduce my issue:

#include <systemc.h>

int sc_main (int argc, char* argv[]) {
  sc_vector<sc_lv<8>> test2 {"test2", 1000};
  sc_vector<sc_uint<8>> test {"test", 1000};
  exit(0);
}

 

Can anyone explain to me what I'm doing wrong?

[Andy Goodrich]

The form you are using is causing the sc_vector constructor to think it has named elements, that is, it expects the vector elements to have a name field that is passed to the constructor for each element. So it will try to create elements with names test_0, test_1, ..., test_999 by calling the constructor for sc_uint<8> with those names. While the sc_uint class has a constructor that takes a char* argument, that argument is expected to be a character representation of a value.  

 

I would suggest you use std::vector for scalar types like sc_uint instead:

std::vector<sc_lv<8> > test2(1000);

std::vector<sc_uint<8> > test(1000);

[scsc]

The 2.3 LRM didn't even mention sc_vector. It is a hidden feature?

[maehne]

No, sc_vector is part of the IEEE Std 1666-2011 (cf. to clause 8.5), which is describing SystemC including TLM-2.0 and is available for free through the IEEE Get Program. Additional information on how to use it, you may find, e.g., here, here, and here.

[scsc]

Thanks. I realized my LRM is an "OSCI SystemC 2.1 LRM", which was published in 2005. The 1666-2011 one has sc_vector.