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-rw-r--r--stdlib/bug-strtod.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/stdlib/bug-strtod.c b/stdlib/bug-strtod.c
new file mode 100644
index 0000000000..c6c8643f4e
--- /dev/null
+++ b/stdlib/bug-strtod.c
@@ -0,0 +1,94 @@
+/* Test to strtod etc for numbers like x000...0000.000e-nn.
+   This file is part of the GNU C Library.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+int
+main (void)
+{
+  char buf[300];
+  int cnt;
+  int result = 0;
+
+  for (cnt = 0; cnt < 200; ++cnt)
+    {
+      ssize_t n;
+      float f;
+
+      n = sprintf (buf, "%d", cnt);
+      memset (buf + n, '0', cnt);
+      sprintf (buf + n + cnt, ".000e-%d", cnt);
+      f = strtof (buf, NULL);
+
+      if (f != (float) cnt)
+	{
+	  printf ("strtof(\"%s\") failed for cnt == %d (%g instead of %g)\n",
+		  buf, cnt, f, (float) cnt);
+	  result = 1;
+	}
+      else
+	printf ("strtof() fine for cnt == %d\n", cnt);
+    }
+
+  for (cnt = 0; cnt < 200; ++cnt)
+    {
+      ssize_t n;
+      double f;
+
+      n = sprintf (buf, "%d", cnt);
+      memset (buf + n, '0', cnt);
+      sprintf (buf + n + cnt, ".000e-%d", cnt);
+      f = strtod (buf, NULL);
+
+      if (f != (double) cnt)
+	{
+	  printf ("strtod(\"%s\") failed for cnt == %d (%g instead of %g)\n",
+		  buf, cnt, f, (double) cnt);
+	  result = 1;
+	}
+      else
+	printf ("strtod() fine for cnt == %d\n", cnt);
+    }
+
+  for (cnt = 0; cnt < 200; ++cnt)
+    {
+      ssize_t n;
+      long double f;
+
+      n = sprintf (buf, "%d", cnt);
+      memset (buf + n, '0', cnt);
+      sprintf (buf + n + cnt, ".000e-%d", cnt);
+      f = strtold (buf, NULL);
+
+      if (f != (long double) cnt)
+	{
+	  printf ("strtold(\"%s\") failed for cnt == %d (%Lg instead of %Lg)\n",
+		  buf, cnt, f, (long double) cnt);
+	  result = 1;
+	}
+      else
+	printf ("strtold() fine for cnt == %d\n", cnt);
+    }
+
+  return result;
+}