* stdlib/strtod_l.c (____STRTOF_INTERNAL): Properly handle -0.

	* stdlib/Makefile (tests): Add tst-strtod5.
	(tst-strtod5-ENV): New.
	* stdlib/tst-strtod5.c: New file.

1 files changed, 88 insertions, 0 deletions

diff --git a/stdlib/tst-strtod5.c b/stdlib/tst-strtod5.c
new file mode 100644
index 0000000000..337c746989
--- /dev/null
+++ b/stdlib/tst-strtod5.c
@@ -0,0 +1,88 @@
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#define NBSP "\xc2\xa0"
+
+static const struct
+{
+  const char *in;
+  int group;
+  double expected;
+} tests[] =
+  {
+    { "0", 0, 0.0 },
+    { "000", 0, 0.0 },
+    { "-0", 0, -0.0 },
+    { "-000", 0, -0.0 },
+    { "0,", 0, 0.0 },
+    { "-0,", 0, -0.0 },
+    { "0,0", 0, 0.0 },
+    { "-0,0", 0, -0.0 },
+    { "0e-10", 0, 0.0 },
+    { "-0e-10", 0, -0.0 },
+    { "0,e-10", 0, 0.0 },
+    { "-0,e-10", 0, -0.0 },
+    { "0,0e-10", 0, 0.0 },
+    { "-0,0e-10", 0, -0.0 },
+    { "0e-1000000", 0, 0.0 },
+    { "-0e-1000000", 0, -0.0 },
+    { "0,0e-1000000", 0, 0.0 },
+    { "-0,0e-1000000", 0, -0.0 },
+    { "0", 1, 0.0 },
+    { "000", 1, 0.0 },
+    { "-0", 1, -0.0 },
+    { "-000", 1, -0.0 },
+    { "0e-10", 1, 0.0 },
+    { "-0e-10", 1, -0.0 },
+    { "0e-1000000", 1, 0.0 },
+    { "-0e-1000000", 1, -0.0 },
+    { "000"NBSP"000"NBSP"000", 1, 0.0 },
+    { "-000"NBSP"000"NBSP"000", 1, -0.0 }
+  };
+#define NTESTS (sizeof (tests) / sizeof (tests[0]))
+
+
+static int
+do_test (void)
+{
+  if (setlocale (LC_ALL, "cs_CZ.UTF-8") == NULL)
+    {
+      puts ("could not set locale");
+      return 1;
+    }
+
+  int status = 0;
+
+  for (int i = 0; i < NTESTS; ++i)
+    {
+      char *ep;
+      double r;
+
+      if (tests[i].group)
+	r = __strtod_internal (tests[i].in, &ep, 1);
+      else
+	r = strtod (tests[i].in, &ep);
+
+      if (*ep != '\0')
+	{
+	  printf ("%d: got rest string \"%s\", expected \"\"\n", i, ep);
+	  status = 1;
+	}
+
+      if (r != tests[i].expected
+	  || copysign (10.0, r) != copysign (10.0, tests[i].expected))
+	{
+	  printf ("%d: got wrong results %g, expected %g\n",
+		  i, r, tests[i].expected);
+	  status = 1;
+	}
+    }
+
+  return status;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"