Vortex 2.0 changes:

+ Microarchitecture optimizations
+ 64-bit support
+ Xilinx FPGA support
+ LLVM-16 support
+ Refactoring and quality control fixes

tests/opencl/bfs/main.cc

@@ -285,7 +285,7 @@ int main(int argc, char *argv[]) {
     free(h_graph_visited);
 
   } catch (std::string msg) {
-    std::cout << "--cambine: exception in main ->" << msg << std::endl;
+    printf("--cambine: exception in main ->%s\n", msg);
     // release host memory
     free(h_graph_nodes);
     free(h_graph_mask);