I have a variable declared as so: sc_bigint<88> x
I want to use fprintf to print it to a file, but this produces an error. I am able to print the variable using cout, but I need to print it to a specific file I have opened.
Any ideas how to do this? Maybe a simple way to redirect cout to the file I need?
Try the File I/O streams provided by C++.
#include <fstream>
#include <iostream>
using namespace std;
// .. snip
// open a file in write mode.
ofstream outfile;
outfile.open("afile.dat");
sc_bigint<88> x;
outfile << x;
Using C++'s stream-based IO (as shown in the other answer) is probably the best approach, however, if you really want to use fprintf()
, then you have the option of using the sc_dt::sc_bigint<W>::to_string()
method. For example:
#include <systemc>
#include <cstdio>
using namespace std;
int sc_main(int argc, char **argv) {
FILE *fp = fopen("sc_bigint.txt", "w");
sc_dt::sc_bigint<88> x("0x7fffffffffffffffffffff"); // (2 ** 87) - 1
fprintf(fp, "x = %s (decimal)\n", x.to_string().c_str());
fprintf(fp, "x = %s (hexadecimal)\n", x.to_string(sc_dt::SC_HEX).c_str());
return EXIT_SUCCESS;
}
The above SystemC program writes the following to a file sc_bigint.txt
:
x = 154742504910672534362390527 (decimal)
x = 0x7fffffffffffffffffffff (hexadecimal)
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