add some printf float rounding tests

2 files changed, 9 insertions, 0 deletions

diff --git a/config.mak b/config.mak
index 7be2b3a..6930dd1 100644
--- a/config.mak
+++ b/config.mak
@@ -1,3 +1,4 @@
 CFLAGS += -Wall -Wno-overflow -Wno-unused -Wno-format
 CFLAGS += -DHAVE_BSD_STRL
 CFLAGS += -DDISABLE_SLOW_TESTS
+#LDFLAGS += -L/home/dalias/musl-test/lib
diff --git a/snprintf.c b/snprintf.c
index 79ec1cc..1468974 100644
--- a/snprintf.c
+++ b/snprintf.c
@@ -69,6 +69,14 @@ static const struct {
 	{ "%.4f", 1.06125, "1.0612" },
 	{ "%.2f", 1.375, "1.38" },
 	{ "%.1f", 1.375, "1.4" },
+	{ "%.15f", 1.1, "1.100000000000000" },
+	{ "%.16f", 1.1, "1.1000000000000001" },
+	{ "%.17f", 1.1, "1.10000000000000009" },
+	{ "%.2e", 1500001.0, "1.50e+06" },
+	{ "%.2e", 1505000.0, "1.50e+06" },
+	{ "%.2e", 1505000.00000095367431640625, "1.51e+06" },
+	{ "%.2e", 1505001.0, "1.51e+06" },
+	{ "%.2e", 1506000.0, "1.51e+06" },
 	
 	/* correctness in DBL_DIG places */
 	{ "%.15g", 1.23456789012345, "1.23456789012345" },