1 files changed, 55 insertions, 0 deletions
diff --git a/stdlib/tst-atof2.c b/stdlib/tst-atof2.c
new file mode 100644
index 0000000000..74dac87b0d
--- /dev/null
+++ b/stdlib/tst-atof2.c
@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+static const struct
+{
+  const char *str;
+  const char *expected;
+} tests[] =
+  {
+    { "1e308", "1e+308" },
+    { "100000000e300", "1e+308" },
+    { "0x1p1023", "8.98847e+307" },
+    { "0x1000p1011", "8.98847e+307" },
+    { "0x1p1020", "1.12356e+307" },
+    { "0x0.00001p1040", "1.12356e+307" },
+    { "1e-307", "1e-307" },
+    { "0.000001e-301", "1e-307" },
+    { "0.0000001e-300", "1e-307" },
+    { "0.00000001e-299", "1e-307" },
+    { "1000000e-313", "1e-307" },
+    { "10000000e-314", "1e-307" },
+    { "100000000e-315", "1e-307" },
+    { "0x1p-1021", "4.45015e-308" },
+    { "0x1000p-1033", "4.45015e-308" },
+    { "0x10000p-1037", "4.45015e-308" },
+    { "0x0.001p-1009", "4.45015e-308" },
+    { "0x0.0001p-1005", "4.45015e-308" },
+  };
+#define NTESTS (sizeof (tests) / sizeof (tests[0]))
+
+
+static int
+do_test (void)
+{
+  int status = 0;
+
+  for (int i = 0; i < NTESTS; ++i)
+    {
+      char buf[100];
+      snprintf (buf, sizeof (buf), "%g", atof (tests[i].str));
+      if (strcmp (buf, tests[i].expected) != 0)
+	{
+	  printf ("%d: got \"%s\", expected \"%s\"\n",
+		  i, buf, tests[i].expected);
+	  status = 1;
+	}
+    }
+
+  return status;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"