1 files changed, 213 insertions, 0 deletions
diff --git a/src/boost/libs/config/test/limits_test.cpp b/src/boost/libs/config/test/limits_test.cpp
new file mode 100644
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+++ b/src/boost/libs/config/test/limits_test.cpp
@@ -0,0 +1,213 @@
+/* boost limits_test.cpp   test your <limits> file for important
+ *
+ * Copyright Jens Maurer 2000
+ * Distributed under the Boost Software License, Version 1.0. (See
+ * accompanying file LICENSE_1_0.txt or copy at
+ * http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * $Id$
+ */
+
+#include <boost/limits.hpp>
+#include <boost/detail/lightweight_main.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <iostream>
+
+/*
+ * General portability note:
+ * MSVC mis-compiles explicit function template instantiations.
+ * For example, f<A>() and f<B>() are both compiled to call f<A>().
+ * BCC is unable to implicitly convert a "const char *" to a std::string
+ * when using explicit function template instantiations.
+ *
+ * Therefore, avoid explicit function template instantiations.
+ */
+#if defined(BOOST_MSVC) && (BOOST_MSVC <= 1300)
+template<typename T> inline T make_char_numeric_for_streaming(T x) { return x; }
+namespace fix{
+inline int make_char_numeric_for_streaming(char c) { return c; }
+inline int make_char_numeric_for_streaming(signed char c) { return c; }
+inline int make_char_numeric_for_streaming(unsigned char c) { return c; }
+}
+using namespace fix;
+#  if defined(_YVALS) && !defined(_CPPLIB_VER) && !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION)
+// fix for missing operator<< in original Dinkumware lib:
+std::ostream& operator<<(std::ostream& os, __int64 i )
+{
+    char buf[80];
+    sprintf(buf,"%I64d", i );
+    os << buf;
+    return os;
+}
+std::ostream& operator<<(std::ostream& os, unsigned __int64 i )
+{
+    char buf[80];
+    sprintf(buf,"%I64u", i );
+    os << buf;
+    return os;
+}
+#  endif
+#else
+template<typename T> inline T make_char_numeric_for_streaming(T x) { return x; }
+inline int make_char_numeric_for_streaming(char c) { return c; }
+inline int make_char_numeric_for_streaming(signed char c) { return c; }
+inline int make_char_numeric_for_streaming(unsigned char c) { return c; }
+#endif
+
+#if (defined(_GLIBCPP_VERSION) || defined(_GLIBCXX_VERSION)) \
+   && defined(BOOST_HAS_LONG_LONG) \
+   && !defined(_GLIBCPP_USE_LONG_LONG) \
+   && !defined(_GLIBCXX_USE_LONG_LONG)
+//
+// Some libstdc++ versions have numeric_limits<long long> but no
+// iostream support for long long.  TODO, find a better fix!!
+//
+std::ostream& operator<<(std::ostream& os, long long i )
+{
+    return os << static_cast<long double>(i);
+}
+std::ostream& operator<<(std::ostream& os, unsigned long long i )
+{
+    return os << static_cast<long double>(i);
+}
+#endif
+
+template<class T>
+void test_integral_limits(const T &, const char * msg)
+{
+  typedef std::numeric_limits<T> lim;
+  std::cout << "Testing " << msg
+            << " (size " << sizeof(T) << ")"
+            << " min: " << make_char_numeric_for_streaming((lim::min)())
+            << ", max: " << make_char_numeric_for_streaming((lim::max)())
+            << std::endl;
+
+  BOOST_TEST(static_cast<bool>(lim::is_specialized));
+  BOOST_TEST(static_cast<bool>(lim::is_integer));
+  // BOOST_TEST(lim::is_modulo);
+  BOOST_TEST(static_cast<bool>((lim::min)() < (lim::max)()));
+}
+
+template <class T>
+void print_hex_val(T t, const char* name)
+{
+  const unsigned char* p = (const unsigned char*)&t;
+  std::cout << "hex value of " << name << " is: ";
+  for (unsigned int i = 0; i < sizeof(T); ++i) {
+    if(p[i] <= 0xF)
+      std::cout << "0";
+    std::cout << std::hex << (int)p[i];
+  }
+  std::cout << std::dec << std::endl;
+}
+
+template<class T>
+void test_float_limits(const T &, const char * msg)
+{
+  std::cout << "\nTesting " << msg << std::endl;
+  typedef std::numeric_limits<T> lim;
+
+  BOOST_TEST(static_cast<bool>(lim::is_specialized));
+  BOOST_TEST(static_cast<bool>(!lim::is_modulo));
+  BOOST_TEST(static_cast<bool>(!lim::is_integer));
+  BOOST_TEST(static_cast<bool>(lim::is_signed));
+
+  const T infinity = lim::infinity();
+  const T qnan = lim::quiet_NaN();
+  const T snan = lim::signaling_NaN();
+
+  std::cout << "IEEE-compatible: " << lim::is_iec559
+       << ", traps: " << lim::traps
+       << ", bounded: " << lim::is_bounded
+       << ", exact: " << lim::is_exact << '\n'
+       << "min: " << (lim::min)() << ", max: " << (lim::max)() << '\n'
+       << "infinity: " << infinity << ", QNaN: " << qnan << '\n';
+  print_hex_val((lim::max)(), "max");
+  print_hex_val(infinity, "infinity");
+  print_hex_val(qnan, "qnan");
+  print_hex_val(snan, "snan");
+
+  BOOST_TEST((lim::max)() > 1000);
+  BOOST_TEST((lim::min)() > 0);
+  BOOST_TEST((lim::min)() < 0.001);
+  BOOST_TEST(lim::epsilon() > 0);
+
+  if(lim::is_iec559) {
+    BOOST_TEST(static_cast<bool>(lim::has_infinity));
+    BOOST_TEST(static_cast<bool>(lim::has_quiet_NaN));
+    BOOST_TEST(static_cast<bool>(lim::has_signaling_NaN));
+  } else {
+    std::cout << "Does not claim IEEE conformance" << std::endl;
+  }
+
+  if(lim::has_infinity) {
+    // Make sure those values are not 0 or similar nonsense.
+    // Infinity must compare as if larger than the maximum representable value.
+    BOOST_TEST(infinity > (lim::max)());
+    BOOST_TEST(-infinity < -(lim::max)());
+  } else {
+    std::cout << "Does not have infinity" << std::endl;
+  }
+
+  if(lim::has_quiet_NaN) {
+    // NaNs shall always compare "false" when compared for equality
+    // If one of these fail, your compiler may be optimizing incorrectly,
+    // or the standard library is incorrectly configured.
+    BOOST_TEST(! (qnan == 42));
+    BOOST_TEST(qnan != 42);
+    if(lim::is_iec559)
+    {
+      BOOST_TEST(! (qnan == qnan));
+      BOOST_TEST(qnan != qnan);
+    }
+
+    // The following tests may cause arithmetic traps.
+    // BOOST_TEST(! (qnan < 42));
+    // BOOST_TEST(! (qnan > 42));
+    // BOOST_TEST(! (qnan <= 42));
+    // BOOST_TEST(! (qnan >= 42));
+  } else {
+    std::cout << "Does not have QNaN" << std::endl;
+  }
+}
+
+
+int cpp_main(int, char*[])
+{
+  test_integral_limits(bool(), "bool");
+  test_integral_limits(char(), "char");
+  typedef signed char signed_char;
+  test_integral_limits(signed_char(), "signed char");
+  typedef unsigned char unsigned_char;
+  test_integral_limits(unsigned_char(), "unsigned char");
+  test_integral_limits(wchar_t(), "wchar_t");
+  test_integral_limits(short(), "short");
+  typedef unsigned short unsigned_short;
+  test_integral_limits(unsigned_short(), "unsigned short");
+  test_integral_limits(int(), "int");
+  typedef unsigned int unsigned_int;
+  test_integral_limits(unsigned_int(), "unsigned int");
+  test_integral_limits(long(), "long");
+  typedef unsigned long unsigned_long;
+  test_integral_limits(unsigned_long(), "unsigned long");
+#if defined(BOOST_HAS_LONG_LONG)
+  test_integral_limits(::boost::long_long_type(), "long long");
+  test_integral_limits(::boost::ulong_long_type(), "unsigned long long");
+#endif
+#ifdef BOOST_HAS_MS_INT64
+  typedef __int64 long_long2;
+  test_integral_limits(long_long2(), "__int64");
+  typedef unsigned __int64 unsigned_long_long2;
+  test_integral_limits(unsigned_long_long2(), "unsigned __int64");
+#endif
+
+  test_float_limits(float(), "float");
+  test_float_limits(double(), "double");
+  typedef long double long_double;
+  test_float_limits(long_double(), "long double");
+  // Some compilers don't pay attention to std:3.6.1/5 and issue a
+  // warning here if "return 0;" is omitted.
+  return boost::report_errors();
+}
+
+