From 77bd447bb4f1c1a1f864fb944de7e9616180310a Mon Sep 17 00:00:00 2001
From: Paolo Carlini <pcarlini@unitus.it>
Date: Mon, 16 Dec 2002 20:52:37 +0100
Subject: [PATCH] re PR libstdc++/8949 (numeric_limits<>::denorm_min() and
is_iec559 problems.)
2002-12-16 Paolo Carlini <pcarlini@unitus.it>
PR libstdc++/8949
* include/std/std_limits.h
(struct numeric_limits<short>,
struct numeric_limits<unsigned short>,
struct numeric_limits<int>,
struct numeric_limits<unsigned int>,
struct numeric_limits<long>,
struct numeric_limits<unsigned long>,
struct numeric_limits<long long>,
struct numeric_limits<unsigned long long>): According
to 18.2.1.2,53 and 18.2.1.5,1 is_iec559 shall be false.
* testsuite/18_support/numeric_limits.cc: Add test04.
From-SVN: r60181
---
libstdc++-v3/ChangeLog | 15 +++++++++++++
libstdc++-v3/include/std/std_limits.h | 16 +++++++-------
.../testsuite/18_support/numeric_limits.cc | 21 +++++++++++++++++++
3 files changed, 44 insertions(+), 8 deletions(-)
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 356a5808bf89..f8a5ec2c320b 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,18 @@
+2002-12-16 Paolo Carlini <pcarlini@unitus.it>
+
+ PR libstdc++/8949
+ * include/std/std_limits.h
+ (struct numeric_limits<short>,
+ struct numeric_limits<unsigned short>,
+ struct numeric_limits<int>,
+ struct numeric_limits<unsigned int>,
+ struct numeric_limits<long>,
+ struct numeric_limits<unsigned long>,
+ struct numeric_limits<long long>,
+ struct numeric_limits<unsigned long long>): According
+ to 18.2.1.2,53 and 18.2.1.5,1 is_iec559 shall be false.
+ * testsuite/18_support/numeric_limits.cc: Add test04.
+
2002-12-16 Benjamin Kosnik <bkoz@redhat.com>
* configure.in (GLIBCPP_ENABLE_DEBUG): Default to none.
diff --git a/libstdc++-v3/include/std/std_limits.h b/libstdc++-v3/include/std/std_limits.h
index be4b5f2a90b9..9be69477958f 100644
--- a/libstdc++-v3/include/std/std_limits.h
+++ b/libstdc++-v3/include/std/std_limits.h
@@ -508,7 +508,7 @@ namespace std
static short denorm_min() throw()
{ return short(); }
- static const bool is_iec559 = true;
+ static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
@@ -558,7 +558,7 @@ namespace std
static unsigned short denorm_min() throw()
{ return static_cast<unsigned short>(0); }
- static const bool is_iec559 = true;
+ static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
@@ -608,7 +608,7 @@ namespace std
static int denorm_min() throw()
{ return static_cast<int>(0); }
- static const bool is_iec559 = true;
+ static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
@@ -658,7 +658,7 @@ namespace std
static unsigned int denorm_min() throw()
{ return static_cast<unsigned int>(0); }
- static const bool is_iec559 = true;
+ static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
@@ -708,7 +708,7 @@ namespace std
static long denorm_min() throw()
{ return static_cast<long>(0); }
- static const bool is_iec559 = true;
+ static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
@@ -758,7 +758,7 @@ namespace std
static unsigned long denorm_min() throw()
{ return static_cast<unsigned long>(0); }
- static const bool is_iec559 = true;
+ static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
@@ -808,7 +808,7 @@ namespace std
static long long denorm_min() throw()
{ return static_cast<long long>(0); }
- static const bool is_iec559 = true;
+ static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
@@ -858,7 +858,7 @@ namespace std
static unsigned long long denorm_min() throw()
{ return static_cast<unsigned long long>(0); }
- static const bool is_iec559 = true;
+ static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits.cc b/libstdc++-v3/testsuite/18_support/numeric_limits.cc
index 4a1c498bb2dc..540b4b7759f0 100644
--- a/libstdc++-v3/testsuite/18_support/numeric_limits.cc
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits.cc
@@ -289,12 +289,33 @@ bool test03()
return test;
}
+// libstdc++/8949
+bool test04()
+{
+ bool test = true;
+
+ VERIFY( !std::numeric_limits<short>::is_iec559 );
+ VERIFY( !std::numeric_limits<unsigned short>::is_iec559 );
+ VERIFY( !std::numeric_limits<int>::is_iec559 );
+ VERIFY( !std::numeric_limits<unsigned int>::is_iec559 );
+ VERIFY( !std::numeric_limits<long>::is_iec559 );
+ VERIFY( !std::numeric_limits<unsigned long>::is_iec559 );
+ VERIFY( !std::numeric_limits<long long>::is_iec559 );
+ VERIFY( !std::numeric_limits<unsigned long long>::is_iec559 );
+
+#ifdef DEBUG_ASSERT
+ assert(test);
+#endif
+
+ return test;
+}
int main()
{
test01();
test02();
test03();
+ test04();
test_extrema<char>();
test_extrema<signed char>();
--
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