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-rw-r--r--src/third_party/boost/boost/random/detail/signed_unsigned_tools.hpp89
1 files changed, 0 insertions, 89 deletions
diff --git a/src/third_party/boost/boost/random/detail/signed_unsigned_tools.hpp b/src/third_party/boost/boost/random/detail/signed_unsigned_tools.hpp
deleted file mode 100644
index 3c81cf49c13..00000000000
--- a/src/third_party/boost/boost/random/detail/signed_unsigned_tools.hpp
+++ /dev/null
@@ -1,89 +0,0 @@
-/* boost random/detail/signed_unsigned_tools.hpp header file
- *
- * Copyright Jens Maurer 2006
- * 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)
- *
- * See http://www.boost.org for most recent version including documentation.
- */
-
-#ifndef BOOST_RANDOM_DETAIL_SIGNED_UNSIGNED_TOOLS
-#define BOOST_RANDOM_DETAIL_SIGNED_UNSIGNED_TOOLS
-
-#include <boost/limits.hpp>
-#include <boost/config.hpp>
-#include <boost/type_traits/make_unsigned.hpp>
-
-namespace boost {
-namespace random {
-namespace detail {
-
-
-/*
- * Compute x - y, we know that x >= y, return an unsigned value.
- */
-
-template<class T, bool sgn = std::numeric_limits<T>::is_signed>
-struct subtract { };
-
-template<class T>
-struct subtract<T, /* signed */ false>
-{
- typedef T result_type;
- result_type operator()(T x, T y) { return x - y; }
-};
-
-template<class T>
-struct subtract<T, /* signed */ true>
-{
- typedef typename make_unsigned<T>::type result_type;
- result_type operator()(T x, T y)
- {
- if (y >= 0) // because x >= y, it follows that x >= 0, too
- return result_type(x) - result_type(y);
- if (x >= 0) // y < 0
- // avoid the nasty two's complement case for y == min()
- return result_type(x) + result_type(-(y+1)) + 1;
- // both x and y are negative: no signed overflow
- return result_type(x - y);
- }
-};
-
-/*
- * Compute x + y, x is unsigned, result fits in type of "y".
- */
-
-template<class T1, class T2, bool sgn = std::numeric_limits<T2>::is_signed>
-struct add { };
-
-template<class T1, class T2>
-struct add<T1, T2, /* signed */ false>
-{
- typedef T2 result_type;
- result_type operator()(T1 x, T2 y) { return T2(x) + y; }
-};
-
-template<class T1, class T2>
-struct add<T1, T2, /* signed */ true>
-{
- typedef T2 result_type;
- result_type operator()(T1 x, T2 y)
- {
- if (y >= 0)
- return T2(x) + y;
- // y < 0
- if (x >= T1(-(y+1))) // result >= 0 after subtraction
- // avoid the nasty two's complement edge case for y == min()
- return T2(x - T1(-(y+1)) - 1);
- // abs(x) < abs(y), thus T2 able to represent x
- return T2(x) + y;
- }
-};
-
-} // namespace detail
-} // namespace random
-} // namespace boost
-
-#endif // BOOST_RANDOM_DETAIL_SIGNED_UNSIGNED_TOOLS
-