base::internal::ClampedSubOp< T, U, typename std::enable_if< std::is_integral< T >::value &&std::is_integral< U >::value >::type > Struct Template Reference

#include <clamped_math_impl.h>

Public Types
using	result_type = typename MaxExponentPromotion< T, U >::type

Static Public Member Functions
template<typename V = result_type>
static constexpr V	Do (T x, U y)

Detailed Description

template<typename T, typename U>
struct base::internal::ClampedSubOp< T, U, typename std::enable_if< std::is_integral< T >::value &&std::is_integral< U >::value >::type >

Definition at line 100 of file clamped_math_impl.h.

Member Typedef Documentation

result_type

template<typename T , typename U >

using base::internal::ClampedSubOp< T, U, typename std::enable_if< std::is_integral< T >::value &&std::is_integral< U >::value >::type >::result_type = typename MaxExponentPromotion<T, U>::type

Definition at line 104 of file clamped_math_impl.h.

Member Function Documentation

Do()

template<typename T , typename U >

template<typename V = result_type>

static constexpr V base::internal::ClampedSubOp< T, U, typename std::enable_if< std::is_integral< T >::value &&std::is_integral< U >::value >::type >::Do ( T  x, U  y  )

inlinestaticconstexpr

Definition at line 106 of file clamped_math_impl.h.

                                  {
    // TODO(jschuh) Make this "constexpr if" once we're C++17.
    if (ClampedSubFastOp<T, U>::is_supported)
      return ClampedSubFastOp<T, U>::template Do<V>(x, y);
 
    static_assert(std::is_same<V, result_type>::value ||
                      IsTypeInRangeForNumericType<U, V>::value,
                  "The saturation result cannot be determined from the "
                  "provided types.");
    const V saturated = CommonMaxOrMin<V>(!IsValueNegative(y));
    V result = {};
    return BASE_NUMERICS_LIKELY((CheckedSubOp<T, U>::Do(x, y, &result)))
               ? result
               : saturated;
  }

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The documentation for this struct was generated from the following file:

• third_party/accessibility/base/numerics/clamped_math_impl.h