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diff --git a/src/3rdparty/angle/src/common/third_party/base/anglebase/numerics/safe_conversions.h b/src/3rdparty/angle/src/common/third_party/base/anglebase/numerics/safe_conversions.h
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+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ANGLEBASE_NUMERICS_SAFE_CONVERSIONS_H_
+#define ANGLEBASE_NUMERICS_SAFE_CONVERSIONS_H_
+
+#include <stddef.h>
+
+#include <limits>
+#include <type_traits>
+
+#include "anglebase/logging.h"
+#include "anglebase/numerics/safe_conversions_impl.h"
+
+namespace angle
+{
+
+namespace base
+{
+
+// Convenience function that returns true if the supplied value is in range
+// for the destination type.
+template <typename Dst, typename Src>
+constexpr bool IsValueInRangeForNumericType(Src value)
+{
+ return internal::DstRangeRelationToSrcRange<Dst>(value) == internal::RANGE_VALID;
+}
+
+// Convenience function for determining if a numeric value is negative without
+// throwing compiler warnings on: unsigned(value) < 0.
+template <typename T>
+constexpr typename std::enable_if<std::numeric_limits<T>::is_signed, bool>::type IsValueNegative(
+ T value)
+{
+ static_assert(std::numeric_limits<T>::is_specialized, "Argument must be numeric.");
+ return value < 0;
+}
+
+template <typename T>
+constexpr typename std::enable_if<!std::numeric_limits<T>::is_signed, bool>::type IsValueNegative(T)
+{
+ static_assert(std::numeric_limits<T>::is_specialized, "Argument must be numeric.");
+ return false;
+}
+
+// checked_cast<> is analogous to static_cast<> for numeric types,
+// except that it CHECKs that the specified numeric conversion will not
+// overflow or underflow. NaN source will always trigger a CHECK.
+template <typename Dst, typename Src>
+inline Dst checked_cast(Src value)
+{
+ CHECK(IsValueInRangeForNumericType<Dst>(value));
+ return static_cast<Dst>(value);
+}
+
+// HandleNaN will cause this class to CHECK(false).
+struct SaturatedCastNaNBehaviorCheck
+{
+ template <typename T>
+ static T HandleNaN()
+ {
+ CHECK(false);
+ return T();
+ }
+};
+
+// HandleNaN will return 0 in this case.
+struct SaturatedCastNaNBehaviorReturnZero
+{
+ template <typename T>
+ static constexpr T HandleNaN()
+ {
+ return T();
+ }
+};
+
+namespace internal
+{
+// This wrapper is used for C++11 constexpr support by avoiding the declaration
+// of local variables in the saturated_cast template function.
+template <typename Dst, class NaNHandler, typename Src>
+constexpr Dst saturated_cast_impl(const Src value, const RangeConstraint constraint)
+{
+ return constraint == RANGE_VALID
+ ? static_cast<Dst>(value)
+ : (constraint == RANGE_UNDERFLOW
+ ? std::numeric_limits<Dst>::min()
+ : (constraint == RANGE_OVERFLOW
+ ? std::numeric_limits<Dst>::max()
+ : (constraint == RANGE_INVALID
+ ? NaNHandler::template HandleNaN<Dst>()
+ : (NOTREACHED(), static_cast<Dst>(value)))));
+}
+} // namespace internal
+
+// saturated_cast<> is analogous to static_cast<> for numeric types, except
+// that the specified numeric conversion will saturate rather than overflow or
+// underflow. NaN assignment to an integral will defer the behavior to a
+// specified class. By default, it will return 0.
+template <typename Dst, class NaNHandler = SaturatedCastNaNBehaviorReturnZero, typename Src>
+constexpr Dst saturated_cast(Src value)
+{
+ return std::numeric_limits<Dst>::is_iec559
+ ? static_cast<Dst>(value) // Floating point optimization.
+ : internal::saturated_cast_impl<Dst, NaNHandler>(
+ value, internal::DstRangeRelationToSrcRange<Dst>(value));
+}
+
+// strict_cast<> is analogous to static_cast<> for numeric types, except that
+// it will cause a compile failure if the destination type is not large enough
+// to contain any value in the source type. It performs no runtime checking.
+template <typename Dst, typename Src>
+constexpr Dst strict_cast(Src value)
+{
+ static_assert(std::numeric_limits<Src>::is_specialized, "Argument must be numeric.");
+ static_assert(std::numeric_limits<Dst>::is_specialized, "Result must be numeric.");
+ static_assert((internal::StaticDstRangeRelationToSrcRange<Dst, Src>::value ==
+ internal::NUMERIC_RANGE_CONTAINED),
+ "The numeric conversion is out of range for this type. You "
+ "should probably use one of the following conversion "
+ "mechanisms on the value you want to pass:\n"
+ "- base::checked_cast\n"
+ "- base::saturated_cast\n"
+ "- base::CheckedNumeric");
+
+ return static_cast<Dst>(value);
+}
+
+// StrictNumeric implements compile time range checking between numeric types by
+// wrapping assignment operations in a strict_cast. This class is intended to be
+// used for function arguments and return types, to ensure the destination type
+// can always contain the source type. This is essentially the same as enforcing
+// -Wconversion in gcc and C4302 warnings on MSVC, but it can be applied
+// incrementally at API boundaries, making it easier to convert code so that it
+// compiles cleanly with truncation warnings enabled.
+// This template should introduce no runtime overhead, but it also provides no
+// runtime checking of any of the associated mathematical operations. Use
+// CheckedNumeric for runtime range checks of the actual value being assigned.
+template <typename T>
+class StrictNumeric
+{
+ public:
+ typedef T type;
+
+ constexpr StrictNumeric() : value_(0) {}
+
+ // Copy constructor.
+ template <typename Src>
+ constexpr StrictNumeric(const StrictNumeric<Src> &rhs) : value_(strict_cast<T>(rhs.value_))
+ {
+ }
+
+ // This is not an explicit constructor because we implicitly upgrade regular
+ // numerics to StrictNumerics to make them easier to use.
+ template <typename Src>
+ constexpr StrictNumeric(Src value) : value_(strict_cast<T>(value))
+ {
+ }
+
+ // The numeric cast operator basically handles all the magic.
+ template <typename Dst>
+ constexpr operator Dst() const
+ {
+ return strict_cast<Dst>(value_);
+ }
+
+ private:
+ const T value_;
+};
+
+// Explicitly make a shorter size_t typedef for convenience.
+typedef StrictNumeric<size_t> SizeT;
+
+} // namespace base
+
+} // namespace angle
+
+#endif // ANGLEBASE_NUMERICS_SAFE_CONVERSIONS_H_