Output diagnostics to stderr, since the skew could be going to stdout.

diff --git a/estimate-skew.cpp b/estimate-skew.cpp
index 116b4fcf92a7d814c49b1771a1c679300fdfbdb8..04a56e785fdb0cfecda9183e0e76a44e16f589a6 100644 (file)
--- a/estimate-skew.cpp
+++ b/estimate-skew.cpp
@@ -187,7 +187,7 @@ int main(int argc, char **argv)
                }
 
                double ns = filter(speed * double(num_inp) / double(num_ref));
-               printf("%u vs. %u -- ratio %.3f, speed %.3f, filtered speed %.3f\n", num_inp, num_ref,
+               fprintf(stderr, "%u vs. %u -- ratio %.3f, speed %.3f, filtered speed %.3f\n", num_inp, num_ref,
                        double(num_inp) / double(num_ref), speed * double(num_inp) / double(num_ref), ns);
                speed = ns;
        }