From 9310c284ae91f13247c9dd7ff58fc2683b9c523d Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Wed, 13 Nov 2013 12:59:54 +0000
Subject: Fix strtod rounding of half the least subnormal (bug 16151).

---
 stdlib/tst-strtod-round.c | 288 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 288 insertions(+)

(limited to 'stdlib/tst-strtod-round.c')

diff --git a/stdlib/tst-strtod-round.c b/stdlib/tst-strtod-round.c
index 9a440264d0..e7aaed17e8 100644
--- a/stdlib/tst-strtod-round.c
+++ b/stdlib/tst-strtod-round.c
@@ -7535,6 +7535,294 @@ static const struct test tests[] = {
 	-0x0p+0L,
 	-0x0p+0L,
 	-0x0p+0L),
+  TEST ("0x1p-150",
+	false,
+	0x0p+0f,
+	0x0p+0f,
+	0x0p+0f,
+	0x8p-152f,
+	true,
+	0x4p-152,
+	0x4p-152,
+	0x4p-152,
+	0x4p-152,
+	true,
+	0x4p-152L,
+	0x4p-152L,
+	0x4p-152L,
+	0x4p-152L,
+	true,
+	0x4p-152L,
+	0x4p-152L,
+	0x4p-152L,
+	0x4p-152L,
+	true,
+	0x4p-152L,
+	0x4p-152L,
+	0x4p-152L,
+	0x4p-152L,
+	true,
+	0x4p-152L,
+	0x4p-152L,
+	0x4p-152L,
+	0x4p-152L,
+	true,
+	0x4p-152L,
+	0x4p-152L,
+	0x4p-152L,
+	0x4p-152L),
+  TEST ("0x1p-1075",
+	false,
+	0x0p+0f,
+	0x0p+0f,
+	0x0p+0f,
+	0x8p-152f,
+	false,
+	0x0p+0,
+	0x0p+0,
+	0x0p+0,
+	0x4p-1076,
+	false,
+	0x0p+0L,
+	0x0p+0L,
+	0x0p+0L,
+	0x4p-1076L,
+	true,
+	0x2p-1076L,
+	0x2p-1076L,
+	0x2p-1076L,
+	0x2p-1076L,
+	true,
+	0x2p-1076L,
+	0x2p-1076L,
+	0x2p-1076L,
+	0x2p-1076L,
+	false,
+	0x0p+0L,
+	0x0p+0L,
+	0x0p+0L,
+	0x4p-1076L,
+	true,
+	0x2p-1076L,
+	0x2p-1076L,
+	0x2p-1076L,
+	0x2p-1076L),
+  TEST ("0x1p-16446",
+	false,
+	0x0p+0f,
+	0x0p+0f,
+	0x0p+0f,
+	0x8p-152f,
+	false,
+	0x0p+0,
+	0x0p+0,
+	0x0p+0,
+	0x4p-1076,
+	false,
+	0x0p+0L,
+	0x0p+0L,
+	0x0p+0L,
+	0x4p-1076L,
+	false,
+	0x0p+0L,
+	0x0p+0L,
+	0x0p+0L,
+	0x8p-16448L,
+	true,
+	0x4p-16448L,
+	0x4p-16448L,
+	0x4p-16448L,
+	0x4p-16448L,
+	false,
+	0x0p+0L,
+	0x0p+0L,
+	0x0p+0L,
+	0x4p-1076L,
+	true,
+	0x4p-16448L,
+	0x4p-16448L,
+	0x4p-16448L,
+	0x4p-16448L),
+  TEST ("0x1p-16495",
+	false,
+	0x0p+0f,
+	0x0p+0f,
+	0x0p+0f,
+	0x8p-152f,
+	false,
+	0x0p+0,
+	0x0p+0,
+	0x0p+0,
+	0x4p-1076,
+	false,
+	0x0p+0L,
+	0x0p+0L,
+	0x0p+0L,
+	0x4p-1076L,
+	false,
+	0x0p+0L,
+	0x0p+0L,
+	0x0p+0L,
+	0x8p-16448L,
+	false,
+	0x0p+0L,
+	0x0p+0L,
+	0x0p+0L,
+	0x4p-16448L,
+	false,
+	0x0p+0L,
+	0x0p+0L,
+	0x0p+0L,
+	0x4p-1076L,
+	false,
+	0x0p+0L,
+	0x0p+0L,
+	0x0p+0L,
+	0x4p-16496L),
+  TEST ("-0x1p-150",
+	false,
+	-0x8p-152f,
+	-0x0p+0f,
+	-0x0p+0f,
+	-0x0p+0f,
+	true,
+	-0x4p-152,
+	-0x4p-152,
+	-0x4p-152,
+	-0x4p-152,
+	true,
+	-0x4p-152L,
+	-0x4p-152L,
+	-0x4p-152L,
+	-0x4p-152L,
+	true,
+	-0x4p-152L,
+	-0x4p-152L,
+	-0x4p-152L,
+	-0x4p-152L,
+	true,
+	-0x4p-152L,
+	-0x4p-152L,
+	-0x4p-152L,
+	-0x4p-152L,
+	true,
+	-0x4p-152L,
+	-0x4p-152L,
+	-0x4p-152L,
+	-0x4p-152L,
+	true,
+	-0x4p-152L,
+	-0x4p-152L,
+	-0x4p-152L,
+	-0x4p-152L),
+  TEST ("-0x1p-1075",
+	false,
+	-0x8p-152f,
+	-0x0p+0f,
+	-0x0p+0f,
+	-0x0p+0f,
+	false,
+	-0x4p-1076,
+	-0x0p+0,
+	-0x0p+0,
+	-0x0p+0,
+	false,
+	-0x4p-1076L,
+	-0x0p+0L,
+	-0x0p+0L,
+	-0x0p+0L,
+	true,
+	-0x2p-1076L,
+	-0x2p-1076L,
+	-0x2p-1076L,
+	-0x2p-1076L,
+	true,
+	-0x2p-1076L,
+	-0x2p-1076L,
+	-0x2p-1076L,
+	-0x2p-1076L,
+	false,
+	-0x4p-1076L,
+	-0x0p+0L,
+	-0x0p+0L,
+	-0x0p+0L,
+	true,
+	-0x2p-1076L,
+	-0x2p-1076L,
+	-0x2p-1076L,
+	-0x2p-1076L),
+  TEST ("-0x1p-16446",
+	false,
+	-0x8p-152f,
+	-0x0p+0f,
+	-0x0p+0f,
+	-0x0p+0f,
+	false,
+	-0x4p-1076,
+	-0x0p+0,
+	-0x0p+0,
+	-0x0p+0,
+	false,
+	-0x4p-1076L,
+	-0x0p+0L,
+	-0x0p+0L,
+	-0x0p+0L,
+	false,
+	-0x8p-16448L,
+	-0x0p+0L,
+	-0x0p+0L,
+	-0x0p+0L,
+	true,
+	-0x4p-16448L,
+	-0x4p-16448L,
+	-0x4p-16448L,
+	-0x4p-16448L,
+	false,
+	-0x4p-1076L,
+	-0x0p+0L,
+	-0x0p+0L,
+	-0x0p+0L,
+	true,
+	-0x4p-16448L,
+	-0x4p-16448L,
+	-0x4p-16448L,
+	-0x4p-16448L),
+  TEST ("-0x1p-16495",
+	false,
+	-0x8p-152f,
+	-0x0p+0f,
+	-0x0p+0f,
+	-0x0p+0f,
+	false,
+	-0x4p-1076,
+	-0x0p+0,
+	-0x0p+0,
+	-0x0p+0,
+	false,
+	-0x4p-1076L,
+	-0x0p+0L,
+	-0x0p+0L,
+	-0x0p+0L,
+	false,
+	-0x8p-16448L,
+	-0x0p+0L,
+	-0x0p+0L,
+	-0x0p+0L,
+	false,
+	-0x4p-16448L,
+	-0x0p+0L,
+	-0x0p+0L,
+	-0x0p+0L,
+	false,
+	-0x4p-1076L,
+	-0x0p+0L,
+	-0x0p+0L,
+	-0x0p+0L,
+	false,
+	-0x4p-16496L,
+	-0x0p+0L,
+	-0x0p+0L,
+	-0x0p+0L),
 };
 
 static int
-- 
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