%g is for doubles

1 files changed, 1 insertions, 1 deletions

diff --git a/miniyacc.c b/miniyacc.c
index 21a9237..668ebc8 100644
--- a/miniyacc.c
+++ b/miniyacc.c
@@ -620,7 +620,7 @@ actgen()
 		n = nst*(nsy-MaxTk + ntk);
 		fprintf(fgrm, "\nOptimizer report\n");
 		fprintf(fgrm, "  Tables size: %d\n", n);
-		fprintf(fgrm, "  Space savings: %.2g\n", (float)(n-actsz)/n);
+		fprintf(fgrm, "  Space savings: %.2g\n", (double)(n-actsz)/n);
 	}
 }