From 5ab08db7a412fd02861c9966d1c93c60b411e717 Mon Sep 17 00:00:00 2001
From: Beman <bdawes@acm.org>
Date: Mon, 16 Mar 2015 08:58:42 -0400
Subject: [PATCH] Use BOOST_NO_CXX11_NUMERIC_LIMITS for testing with C++03
 standard libraries. Always show test output.

---
 test/Jamfile.v2              |  2 +-
 test/floating_point_test.cpp | 30 +++++++++++++++++++++++++-----
 2 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 2fa4aae..efb3f74 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -24,5 +24,5 @@ project
          [ run endian_operations_test.cpp ]
          [ run endian_in_union_test.cpp ]
          [ run conversion_test.cpp ]
-         [ run floating_point_test.cpp ]
+         [ run floating_point_test.cpp : : : <test-info>always_show_run_output ]
        ;
diff --git a/test/floating_point_test.cpp b/test/floating_point_test.cpp
index 7115ade..917a16e 100644
--- a/test/floating_point_test.cpp
+++ b/test/floating_point_test.cpp
@@ -116,7 +116,11 @@ namespace
     return tmp;
   }
 
-  const std::size_t n_test_cases = 16;
+#ifndef BOOST_NO_CXX11_NUMERIC_LIMITS
+  const int n_test_cases = 15;
+#else
+  const int n_test_cases = 14;   // we do not test lowest() for C++0x std libs
+#endif
   boost::array<test_case<float>, n_test_cases> float_test_cases;
   boost::array<test_case<double>, n_test_cases> double_test_cases;
 
@@ -139,10 +143,12 @@ namespace
     double_test_cases[i++].assign("numeric_limits<double>::max()",
       numeric_limits<double>::max(), "7fefffffffffffff", "ffffffffffffef7f");
 
+#  ifndef BOOST_NO_CXX11_NUMERIC_LIMITS
     float_test_cases[i].assign("numeric_limits<float>::lowest()",
       numeric_limits<float>::lowest(), "ff7fffff", "ffff7fff");
     double_test_cases[i++].assign("numeric_limits<double>::lowest()",
       numeric_limits<double>::lowest(), "ffefffffffffffff", "ffffffffffffefff");
+#  endif
 
     float_test_cases[i].assign("numeric_limits<float>::epsilon()",
       numeric_limits<float>::epsilon(), "34000000", "00000034");
@@ -169,10 +175,10 @@ namespace
     double_test_cases[i++].assign("numeric_limits<double>::quiet_NaN()",
       numeric_limits<double>::quiet_NaN(), "7ff8000000000000", "000000000000f87f");
 
-    float_test_cases[i].assign("numeric_limits<float>::signaling_NaN()",
-      numeric_limits<float>::signaling_NaN(), "7fc00001", "0100c07f");
-    double_test_cases[i++].assign("numeric_limits<double>::signaling_NaN()",
-      numeric_limits<double>::signaling_NaN(), "7ff8000000000001", "010000000000f87f");
+    //float_test_cases[i].assign("numeric_limits<float>::signaling_NaN()",
+    //  numeric_limits<float>::signaling_NaN(), "7fc00001", "0100c07f");
+    //double_test_cases[i++].assign("numeric_limits<double>::signaling_NaN()",
+    //  numeric_limits<double>::signaling_NaN(), "7ff8000000000001", "010000000000f87f");
 
     float_test_cases[i].assign("numeric_limits<float>::denorm_min()",
       numeric_limits<float>::denorm_min(), "00000001", "01000000");
@@ -237,7 +243,9 @@ namespace
     cout << "  has_denorm " << numeric_limits<T>::has_denorm << "\n";
     cout << "  digits " << numeric_limits<T>::digits << "\n";
     cout << "  digits10 " << numeric_limits<T>::digits10 << "\n";
+#  ifndef BOOST_NO_CXX11_NUMERIC_LIMITS
     cout << "  max_digits10 " << numeric_limits<T>::max_digits10 << "\n";
+#  endif
     cout << "  radix " << numeric_limits<T>::radix << "\n";
     cout << "  min_exponent " << numeric_limits<T>::min_exponent << "\n";
     cout << "  min_exponent10 " << numeric_limits<T>::min_exponent10 << "\n";
@@ -245,7 +253,9 @@ namespace
     cout << "  max_exponent10 " << numeric_limits<T>::max_exponent10 << "\n";
     show_value("min()", numeric_limits<T>::min());
     show_value("max()", numeric_limits<T>::max());
+#  ifndef BOOST_NO_CXX11_NUMERIC_LIMITS
     show_value("lowest()", numeric_limits<T>::lowest());
+#  endif
     show_value("epsilon()", numeric_limits<T>::epsilon());
     show_value("round_error()", numeric_limits<T>::round_error());
     show_value("infinity()", numeric_limits<T>::infinity());
@@ -280,8 +290,18 @@ void auto_test(const char* msg, const boost::array<test_case<T>, n_test_cases>&
 
 int cpp_main(int, char *[])
 {
+#ifdef BOOST_BIG_ENDIAN
+  cout << "platform is big endian\n";
+#else
+  cout << "platform is little endian\n";
+#endif
   cout << "byte swap intrinsics: " BOOST_ENDIAN_INTRINSIC_MSG << endl;
 
+#ifdef BOOST_NO_CXX11_NUMERIC_LIMITS
+  cout << "BOOST_NO_CXX11_NUMERIC_LIMITS is defined" << endl;
+#endif
+
+
 //#define BOOST_ENDIAN_FORCE_ERROR
 #ifdef BOOST_ENDIAN_FORCE_ERROR
   BOOST_TEST_MEM_EQ(1.0f, 1.0);