Import libc++ trunk r165949. Among other improvements and bug fixes,

this has many visibility problems fixed, which should help with
compiling certain ports that exercise C++11 mode (i.e. Firefox).

Also, belatedly add the LICENSE.TXT and accompanying CREDITS.TXT files,
which are referred to in all the source files.

MFC after:	1 month

1 files changed, 14 insertions, 11 deletions

diff --git a/contrib/libc++/include/random b/contrib/libc++/include/random
index 0983327..a1553f1 100644
--- a/contrib/libc++/include/random
+++ b/contrib/libc++/include/random
@@ -217,7 +217,7 @@ public:
     void discard(unsigned long long z);
 
     // property functions
-    const Engine& base() const;
+    const Engine& base() const noexcept;
 };
 
 template<class Engine, size_t p, size_t r>
@@ -269,7 +269,7 @@ public:
     result_type operator()(); void discard(unsigned long long z);
 
     // property functions
-    const Engine& base() const;
+    const Engine& base() const noexcept;
 };
 
 template<class Engine, size_t w, class UIntType>
@@ -323,7 +323,7 @@ public:
     void discard(unsigned long long z);
 
     // property functions
-    const Engine& base() const;
+    const Engine& base() const noexcept;
 };
 
 template<class Engine, size_t k>
@@ -392,7 +392,7 @@ public:
     result_type operator()();
 
     // property functions
-    double entropy() const;
+    double entropy() const noexcept;
 
     // no copy functions
     random_device(const random_device& ) = delete;
@@ -1813,10 +1813,11 @@ struct __lce_ta<__a, __c, __m, (unsigned short)(~0), __b>
 };
 
 template <class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
-class linear_congruential_engine;
+class _LIBCPP_VISIBLE linear_congruential_engine;
 
 template <class _CharT, class _Traits,
           class _Up, _Up _Ap, _Up _Cp, _Up _Np>
+_LIBCPP_INLINE_VISIBILITY
 basic_ostream<_CharT, _Traits>&
 operator<<(basic_ostream<_CharT, _Traits>& __os,
            const linear_congruential_engine<_Up, _Ap, _Cp, _Np>&);
@@ -2021,7 +2022,7 @@ typedef minstd_rand                                       default_random_engine;
 template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
           _UIntType __a, size_t __u, _UIntType __d, size_t __s,
           _UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
-class mersenne_twister_engine;
+class _LIBCPP_VISIBLE mersenne_twister_engine;
 
 template <class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
           _UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
@@ -2035,6 +2036,7 @@ operator==(const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp,
 template <class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
           _UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
           _UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
+_LIBCPP_INLINE_VISIBILITY
 bool
 operator!=(const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
                                          _Bp, _Tp, _Cp, _Lp, _Fp>& __x,
@@ -2424,7 +2426,7 @@ typedef mersenne_twister_engine<uint_fast64_t, 64, 312, 156, 31,
 // subtract_with_carry_engine
 
 template<class _UIntType, size_t __w, size_t __s, size_t __r>
-class subtract_with_carry_engine;
+class _LIBCPP_VISIBLE subtract_with_carry_engine;
 
 template<class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
 bool
@@ -2433,6 +2435,7 @@ operator==(
     const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __y);
 
 template<class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
+_LIBCPP_INLINE_VISIBILITY
 bool
 operator!=(
     const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x,
@@ -2788,7 +2791,7 @@ public:
 
     // property functions
     _LIBCPP_INLINE_VISIBILITY
-    const _Engine& base() const {return __e_;}
+    const _Engine& base() const _NOEXCEPT {return __e_;}
 
     template<class _Eng, size_t _Pp, size_t _Rp>
     friend
@@ -2993,7 +2996,7 @@ public:
 
     // property functions
     _LIBCPP_INLINE_VISIBILITY
-    const _Engine& base() const {return __e_;}
+    const _Engine& base() const _NOEXCEPT {return __e_;}
 
     template<class _Eng, size_t _Wp, class _UI>
     friend
@@ -3222,7 +3225,7 @@ public:
 
     // property functions
     _LIBCPP_INLINE_VISIBILITY
-    const _Engine& base() const {return __e_;}
+    const _Engine& base() const _NOEXCEPT {return __e_;}
 
 private:
     template<class _Eng, size_t _Kp>
@@ -3399,7 +3402,7 @@ public:
     result_type operator()();
 
     // property functions
-    double entropy() const;
+    double entropy() const _NOEXCEPT;
 
 private:
     // no copy functions