Merge pull request #2610 from verilog-to-routing/feature-flush-in-assertion

Enable VTR to flush stdout and stderr before assertion

Author: vaughnbetz

libs/libvtrutil/src/vtr_assert.cpp

@@ -16,6 +16,8 @@ void handle_assert(const char* expr, const char* file, unsigned int line, const
         fprintf(stderr, " (%s)", msg);
     }
     fprintf(stderr, ".\n");
+    fflush(stdout);
+    fflush(stderr);
     std::abort();
 }