_STD -> _VSTD to avoid macro clash on windows

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@134190 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/__bit_reference b/include/__bit_reference
index 0b006dc..57b92ea 100644
--- a/include/__bit_reference
+++ b/include/__bit_reference
@@ -142,25 +142,25 @@
     if (__first.__ctz_ != 0)
     {
         __storage_type __clz_f = static_cast<__storage_type>(__bits_per_word - __first.__ctz_);
-        __storage_type __dn = _STD::min(__clz_f, __n);
+        __storage_type __dn = _VSTD::min(__clz_f, __n);
         __storage_type __m = (~__storage_type(0) << __first.__ctz_) & (~__storage_type(0) >> (__clz_f - __dn));
         __storage_type __b = *__first.__seg_ & __m;
         if (__b)
-            return _It(__first.__seg_, static_cast<unsigned>(_STD::__ctz(__b)));
+            return _It(__first.__seg_, static_cast<unsigned>(_VSTD::__ctz(__b)));
         __n -= __dn;
         ++__first.__seg_;
     }
     // do middle whole words
     for (; __n >= __bits_per_word; ++__first.__seg_, __n -= __bits_per_word)
         if (*__first.__seg_)
-            return _It(__first.__seg_, static_cast<unsigned>(_STD::__ctz(*__first.__seg_)));
+            return _It(__first.__seg_, static_cast<unsigned>(_VSTD::__ctz(*__first.__seg_)));
     // do last partial word
     if (__n > 0)
     {
         __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n);
         __storage_type __b = *__first.__seg_ & __m;
         if (__b)
-            return _It(__first.__seg_, static_cast<unsigned>(_STD::__ctz(__b)));
+            return _It(__first.__seg_, static_cast<unsigned>(_VSTD::__ctz(__b)));
     }
     return _It(__first.__seg_, static_cast<unsigned>(__n));
 }
@@ -176,11 +176,11 @@
     if (__first.__ctz_ != 0)
     {
         __storage_type __clz_f = static_cast<__storage_type>(__bits_per_word - __first.__ctz_);
-        __storage_type __dn = _STD::min(__clz_f, __n);
+        __storage_type __dn = _VSTD::min(__clz_f, __n);
         __storage_type __m = (~__storage_type(0) << __first.__ctz_) & (~__storage_type(0) >> (__clz_f - __dn));
         __storage_type __b = ~(*__first.__seg_ & __m);
         if (__b)
-            return _It(__first.__seg_, static_cast<unsigned>(_STD::__ctz(__b)));
+            return _It(__first.__seg_, static_cast<unsigned>(_VSTD::__ctz(__b)));
         __n -= __dn;
         ++__first.__seg_;
     }
@@ -189,7 +189,7 @@
     {
         __storage_type __b = ~*__first.__seg_;
         if (__b)
-            return _It(__first.__seg_, static_cast<unsigned>(_STD::__ctz(__b)));
+            return _It(__first.__seg_, static_cast<unsigned>(_VSTD::__ctz(__b)));
     }
     // do last partial word
     if (__n > 0)
@@ -197,7 +197,7 @@
         __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n);
         __storage_type __b = ~(*__first.__seg_ & __m);
         if (__b)
-            return _It(__first.__seg_, static_cast<unsigned>(_STD::__ctz(__b)));
+            return _It(__first.__seg_, static_cast<unsigned>(_VSTD::__ctz(__b)));
     }
     return _It(__first.__seg_, static_cast<unsigned>(__n));
 }
@@ -227,20 +227,20 @@
     if (__first.__ctz_ != 0)
     {
         __storage_type __clz_f = static_cast<__storage_type>(__bits_per_word - __first.__ctz_);
-        __storage_type __dn = _STD::min(__clz_f, __n);
+        __storage_type __dn = _VSTD::min(__clz_f, __n);
         __storage_type __m = (~__storage_type(0) << __first.__ctz_) & (~__storage_type(0) >> (__clz_f - __dn));
-        __r = _STD::__pop_count(*__first.__seg_ & __m);
+        __r = _VSTD::__pop_count(*__first.__seg_ & __m);
         __n -= __dn;
         ++__first.__seg_;
     }
     // do middle whole words
     for (; __n >= __bits_per_word; ++__first.__seg_, __n -= __bits_per_word)
-        __r += _STD::__pop_count(*__first.__seg_);
+        __r += _VSTD::__pop_count(*__first.__seg_);
     // do last partial word
     if (__n > 0)
     {
         __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n);
-        __r += _STD::__pop_count(*__first.__seg_ & __m);
+        __r += _VSTD::__pop_count(*__first.__seg_ & __m);
     }
     return __r;
 }
@@ -258,20 +258,20 @@
     if (__first.__ctz_ != 0)
     {
         __storage_type __clz_f = static_cast<__storage_type>(__bits_per_word - __first.__ctz_);
-        __storage_type __dn = _STD::min(__clz_f, __n);
+        __storage_type __dn = _VSTD::min(__clz_f, __n);
         __storage_type __m = (~__storage_type(0) << __first.__ctz_) & (~__storage_type(0) >> (__clz_f - __dn));
-        __r = _STD::__pop_count(~(*__first.__seg_ & __m));
+        __r = _VSTD::__pop_count(~(*__first.__seg_ & __m));
         __n -= __dn;
         ++__first.__seg_;
     }
     // do middle whole words
     for (; __n >= __bits_per_word; ++__first.__seg_, __n -= __bits_per_word)
-        __r += _STD::__pop_count(~*__first.__seg_);
+        __r += _VSTD::__pop_count(~*__first.__seg_);
     // do last partial word
     if (__n > 0)
     {
         __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n);
-        __r += _STD::__pop_count(~(*__first.__seg_ & __m));
+        __r += _VSTD::__pop_count(~(*__first.__seg_ & __m));
     }
     return __r;
 }
@@ -299,7 +299,7 @@
     if (__first.__ctz_ != 0)
     {
         __storage_type __clz_f = static_cast<__storage_type>(__bits_per_word - __first.__ctz_);
-        __storage_type __dn = _STD::min(__clz_f, __n);
+        __storage_type __dn = _VSTD::min(__clz_f, __n);
         __storage_type __m = (~__storage_type(0) << __first.__ctz_) & (~__storage_type(0) >> (__clz_f - __dn));
         *__first.__seg_ &= ~__m;
         __n -= __dn;
@@ -307,7 +307,7 @@
     }
     // do middle whole words
     __storage_type __nw = __n / __bits_per_word;
-    _STD::memset(__first.__seg_, 0, __nw * sizeof(__storage_type));
+    _VSTD::memset(__first.__seg_, 0, __nw * sizeof(__storage_type));
     __n -= __nw * __bits_per_word;
     // do last partial word
     if (__n > 0)
@@ -329,7 +329,7 @@
     if (__first.__ctz_ != 0)
     {
         __storage_type __clz_f = static_cast<__storage_type>(__bits_per_word - __first.__ctz_);
-        __storage_type __dn = _STD::min(__clz_f, __n);
+        __storage_type __dn = _VSTD::min(__clz_f, __n);
         __storage_type __m = (~__storage_type(0) << __first.__ctz_) & (~__storage_type(0) >> (__clz_f - __dn));
         *__first.__seg_ |= __m;
         __n -= __dn;
@@ -337,7 +337,7 @@
     }
     // do middle whole words
     __storage_type __nw = __n / __bits_per_word;
-    _STD::memset(__first.__seg_, -1, __nw * sizeof(__storage_type));
+    _VSTD::memset(__first.__seg_, -1, __nw * sizeof(__storage_type));
     __n -= __nw * __bits_per_word;
     // do last partial word
     if (__n > 0)
@@ -369,7 +369,7 @@
 void
 fill(__bit_iterator<_C, false> __first, __bit_iterator<_C, false> __last, bool __value)
 {
-    _STD::fill_n(__first, static_cast<typename _C::size_type>(__last - __first), __value);
+    _VSTD::fill_n(__first, static_cast<typename _C::size_type>(__last - __first), __value);
 }
 
 // copy
@@ -390,7 +390,7 @@
         if (__first.__ctz_ != 0)
         {
             unsigned __clz = __bits_per_word - __first.__ctz_;
-            difference_type __dn = _STD::min(static_cast<difference_type>(__clz), __n);
+            difference_type __dn = _VSTD::min(static_cast<difference_type>(__clz), __n);
             __n -= __dn;
             __storage_type __m = (~__storage_type(0) << __first.__ctz_) & (~__storage_type(0) >> (__clz - __dn));
             __storage_type __b = *__first.__seg_ & __m;
@@ -404,7 +404,7 @@
         // __first.__ctz_ == 0;
         // do middle words
         __storage_type __nw = __n / __bits_per_word;
-        _STD::memmove(__result.__seg_, __first.__seg_, __nw * sizeof(__storage_type));
+        _VSTD::memmove(__result.__seg_, __first.__seg_, __nw * sizeof(__storage_type));
         __n -= __nw * __bits_per_word;
         __result.__seg_ += __nw;
         // do last word
@@ -437,12 +437,12 @@
         if (__first.__ctz_ != 0)
         {
             unsigned __clz_f = __bits_per_word - __first.__ctz_;
-            difference_type __dn = _STD::min(static_cast<difference_type>(__clz_f), __n);
+            difference_type __dn = _VSTD::min(static_cast<difference_type>(__clz_f), __n);
             __n -= __dn;
             __storage_type __m = (~__storage_type(0) << __first.__ctz_) & (~__storage_type(0) >> (__clz_f - __dn));
             __storage_type __b = *__first.__seg_ & __m;
             unsigned __clz_r = __bits_per_word - __result.__ctz_;
-            __storage_type __ddn = _STD::min<__storage_type>(__dn, __clz_r);
+            __storage_type __ddn = _VSTD::min<__storage_type>(__dn, __clz_r);
             __m = (~__storage_type(0) << __result.__ctz_) & (~__storage_type(0) >> (__clz_r - __ddn));
             *__result.__seg_ &= ~__m;
             if (__result.__ctz_ > __first.__ctz_)
@@ -480,7 +480,7 @@
         {
             __m = ~__storage_type(0) >> (__bits_per_word - __n);
             __storage_type __b = *__first.__seg_ & __m;
-            __storage_type __dn = _STD::min(__n, static_cast<difference_type>(__clz_r));
+            __storage_type __dn = _VSTD::min(__n, static_cast<difference_type>(__clz_r));
             __m = (~__storage_type(0) << __result.__ctz_) & (~__storage_type(0) >> (__clz_r - __dn));
             *__result.__seg_ &= ~__m;
             *__result.__seg_ |= __b << __result.__ctz_;
@@ -526,7 +526,7 @@
         // do first word
         if (__last.__ctz_ != 0)
         {
-            difference_type __dn = _STD::min(static_cast<difference_type>(__last.__ctz_), __n);
+            difference_type __dn = _VSTD::min(static_cast<difference_type>(__last.__ctz_), __n);
             __n -= __dn;
             unsigned __clz = __bits_per_word - __last.__ctz_;
             __storage_type __m = (~__storage_type(0) << (__last.__ctz_ - __dn)) & (~__storage_type(0) >> __clz);
@@ -543,7 +543,7 @@
         __storage_type __nw = __n / __bits_per_word;
         __result.__seg_ -= __nw;
         __last.__seg_ -= __nw;
-        _STD::memmove(__result.__seg_, __last.__seg_, __nw * sizeof(__storage_type));
+        _VSTD::memmove(__result.__seg_, __last.__seg_, __nw * sizeof(__storage_type));
         __n -= __nw * __bits_per_word;
         // do last word
         if (__n > 0)
@@ -573,13 +573,13 @@
         // do first word
         if (__last.__ctz_ != 0)
         {
-            difference_type __dn = _STD::min(static_cast<difference_type>(__last.__ctz_), __n);
+            difference_type __dn = _VSTD::min(static_cast<difference_type>(__last.__ctz_), __n);
             __n -= __dn;
             unsigned __clz_l = __bits_per_word - __last.__ctz_;
             __storage_type __m = (~__storage_type(0) << (__last.__ctz_ - __dn)) & (~__storage_type(0) >> __clz_l);
             __storage_type __b = *__last.__seg_ & __m;
             unsigned __clz_r = __bits_per_word - __result.__ctz_;
-            __storage_type __ddn = _STD::min(__dn, static_cast<difference_type>(__result.__ctz_));
+            __storage_type __ddn = _VSTD::min(__dn, static_cast<difference_type>(__result.__ctz_));
             if (__ddn > 0)
             {
                 __m = (~__storage_type(0) << (__result.__ctz_ - __ddn)) & (~__storage_type(0) >> __clz_r);
@@ -623,7 +623,7 @@
             __m = ~__storage_type(0) << (__bits_per_word - __n);
             __storage_type __b = *--__last.__seg_ & __m;
             unsigned __clz_r = __bits_per_word - __result.__ctz_;
-            __storage_type __dn = _STD::min(__n, static_cast<difference_type>(__result.__ctz_));
+            __storage_type __dn = _VSTD::min(__n, static_cast<difference_type>(__result.__ctz_));
             __m = (~__storage_type(0) << (__result.__ctz_ - __dn)) & (~__storage_type(0) >> __clz_r);
             *__result.__seg_ &= ~__m;
             *__result.__seg_ |= __b >> (__bits_per_word - __result.__ctz_);
@@ -661,7 +661,7 @@
 __bit_iterator<_C, false>
 move(__bit_iterator<_C, _IsConst> __first, __bit_iterator<_C, _IsConst> __last, __bit_iterator<_C, false> __result)
 {
-    return _STD::copy(__first, __last, __result);
+    return _VSTD::copy(__first, __last, __result);
 }
 
 // move_backward
@@ -671,7 +671,7 @@
 __bit_iterator<_C, false>
 move_backward(__bit_iterator<_C, _IsConst> __first, __bit_iterator<_C, _IsConst> __last, __bit_iterator<_C, false> __result)
 {
-    return _STD::copy(__first, __last, __result);
+    return _VSTD::copy(__first, __last, __result);
 }
 
 // swap_ranges
@@ -692,7 +692,7 @@
         if (__first.__ctz_ != 0)
         {
             unsigned __clz = __bits_per_word - __first.__ctz_;
-            difference_type __dn = _STD::min(static_cast<difference_type>(__clz), __n);
+            difference_type __dn = _VSTD::min(static_cast<difference_type>(__clz), __n);
             __n -= __dn;
             __storage_type __m = (~__storage_type(0) << __first.__ctz_) & (~__storage_type(0) >> (__clz - __dn));
             __storage_type __b1 = *__first.__seg_ & __m;
@@ -742,13 +742,13 @@
         if (__first.__ctz_ != 0)
         {
             unsigned __clz_f = __bits_per_word - __first.__ctz_;
-            difference_type __dn = _STD::min(static_cast<difference_type>(__clz_f), __n);
+            difference_type __dn = _VSTD::min(static_cast<difference_type>(__clz_f), __n);
             __n -= __dn;
             __storage_type __m = (~__storage_type(0) << __first.__ctz_) & (~__storage_type(0) >> (__clz_f - __dn));
             __storage_type __b1 = *__first.__seg_ & __m;
             *__first.__seg_ &= ~__m;
             unsigned __clz_r = __bits_per_word - __result.__ctz_;
-            __storage_type __ddn = _STD::min<__storage_type>(__dn, __clz_r);
+            __storage_type __ddn = _VSTD::min<__storage_type>(__dn, __clz_r);
             __m = (~__storage_type(0) << __result.__ctz_) & (~__storage_type(0) >> (__clz_r - __ddn));
             __storage_type __b2 = *__result.__seg_ & __m;
             *__result.__seg_ &= ~__m;
@@ -803,7 +803,7 @@
             __m = ~__storage_type(0) >> (__bits_per_word - __n);
             __storage_type __b1 = *__first.__seg_ & __m;
             *__first.__seg_ &= ~__m;
-            __storage_type __dn = _STD::min<__storage_type>(__n, __clz_r);
+            __storage_type __dn = _VSTD::min<__storage_type>(__n, __clz_r);
             __m = (~__storage_type(0) << __result.__ctz_) & (~__storage_type(0) >> (__clz_r - __dn));
             __storage_type __b2 = *__result.__seg_ & __m;
             *__result.__seg_ &= ~__m;
@@ -877,13 +877,13 @@
             if (__d1 <= __bit_array<_C>::capacity())
             {
                 __bit_array<_C> __b(__d1);
-                _STD::copy(__first, __middle, __b.begin());
-                _STD::copy(__b.begin(), __b.end(), _STD::copy(__middle, __last, __first));
+                _VSTD::copy(__first, __middle, __b.begin());
+                _VSTD::copy(__b.begin(), __b.end(), _VSTD::copy(__middle, __last, __first));
                 break;
             }
             else
             {
-                __bit_iterator<_C, false> __mp = _STD::swap_ranges(__first, __middle, __middle);
+                __bit_iterator<_C, false> __mp = _VSTD::swap_ranges(__first, __middle, __middle);
                 __first = __middle;
                 __middle = __mp;
                 __d2 -= __d1;
@@ -894,14 +894,14 @@
             if (__d2 <= __bit_array<_C>::capacity())
             {
                 __bit_array<_C> __b(__d2);
-                _STD::copy(__middle, __last, __b.begin());
-                _STD::copy_backward(__b.begin(), __b.end(), _STD::copy_backward(__first, __middle, __last));
+                _VSTD::copy(__middle, __last, __b.begin());
+                _VSTD::copy_backward(__b.begin(), __b.end(), _VSTD::copy_backward(__first, __middle, __last));
                 break;
             }
             else
             {
                 __bit_iterator<_C, false> __mp = __first + __d2;
-                _STD::swap_ranges(__first, __mp, __middle);
+                _VSTD::swap_ranges(__first, __mp, __middle);
                 __first = __mp;
                 __d1 -= __d2;
             }
@@ -928,12 +928,12 @@
         if (__first1.__ctz_ != 0)
         {
             unsigned __clz_f = __bits_per_word - __first1.__ctz_;
-            difference_type __dn = _STD::min(static_cast<difference_type>(__clz_f), __n);
+            difference_type __dn = _VSTD::min(static_cast<difference_type>(__clz_f), __n);
             __n -= __dn;
             __storage_type __m = (~__storage_type(0) << __first1.__ctz_) & (~__storage_type(0) >> (__clz_f - __dn));
             __storage_type __b = *__first1.__seg_ & __m;
             unsigned __clz_r = __bits_per_word - __first2.__ctz_;
-            __storage_type __ddn = _STD::min<__storage_type>(__dn, __clz_r);
+            __storage_type __ddn = _VSTD::min<__storage_type>(__dn, __clz_r);
             __m = (~__storage_type(0) << __first2.__ctz_) & (~__storage_type(0) >> (__clz_r - __ddn));
             if (__first2.__ctz_ > __first1.__ctz_)
                 if ((*__first2.__seg_ & __m) != (__b << (__first2.__ctz_ - __first1.__ctz_)))
@@ -972,7 +972,7 @@
         {
             __m = ~__storage_type(0) >> (__bits_per_word - __n);
             __storage_type __b = *__first1.__seg_ & __m;
-            __storage_type __dn = _STD::min(__n, static_cast<difference_type>(__clz_r));
+            __storage_type __dn = _VSTD::min(__n, static_cast<difference_type>(__clz_r));
             __m = (~__storage_type(0) << __first2.__ctz_) & (~__storage_type(0) >> (__clz_r - __dn));
             if ((*__first2.__seg_ & __m) != (__b << __first2.__ctz_))
                 return false;
@@ -1006,7 +1006,7 @@
         if (__first1.__ctz_ != 0)
         {
             unsigned __clz = __bits_per_word - __first1.__ctz_;
-            difference_type __dn = _STD::min(static_cast<difference_type>(__clz), __n);
+            difference_type __dn = _VSTD::min(static_cast<difference_type>(__clz), __n);
             __n -= __dn;
             __storage_type __m = (~__storage_type(0) << __first1.__ctz_) & (~__storage_type(0) >> (__clz - __dn));
             if ((*__first2.__seg_ & __m) != (*__first1.__seg_ & __m))