base::internal::ClampedMulFastAsmOp< T, U > Struct Template Reference

#include <safe_math_arm_impl.h>

Public Types
using	Promotion = typename FastIntegerArithmeticPromotion< T, U >::type

Public Member Functions
template<typename V >
	__attribute__ ((always_inline)) static V Do(T x
return	saturated_cast (static_cast< Promotion >(x) *static_cast< Promotion >(y))

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

Public Attributes
U	y

Static Public Attributes
static const bool	is_supported = CheckedMulFastAsmOp<T, U>::is_supported

Detailed Description

template<typename T, typename U>
struct base::internal::ClampedMulFastAsmOp< T, U >

Definition at line 97 of file safe_math_arm_impl.h.

Member Typedef Documentation

Promotion

template<typename T , typename U >

using base::internal::ClampedMulFastAsmOp< T, U >::Promotion = typename FastIntegerArithmeticPromotion<T, U>::type

Definition at line 113 of file safe_math_arm_impl.h.

Member Function Documentation

__attribute__()

template<typename T , typename U >

template<typename V >

base::internal::ClampedMulFastAsmOp< T, U >::__attribute__

(

(always_inline)

)

References base::internal::IsValueNegative(), x, and base::internal::ClampedMulFastAsmOp< T, U >::y.

Do()

template<typename T , typename U >

template<typename V >

static constexpr V base::internal::ClampedMulFastAsmOp< T, U >::Do ( T  , U    )

inlinestaticconstexpr

Definition at line 61 of file safe_math_clang_gcc_impl.h.

                              {
    // Force a compile failure if instantiated.
    return CheckOnFailure::template HandleFailure<V>();
  }

saturated_cast()

template<typename T , typename U >

return base::internal::ClampedMulFastAsmOp< T, U >::saturated_cast

(

static_cast< Promotion >

x) *static_cast< Promotion >(y

)

Member Data Documentation

is_supported

template<typename T , typename U >

static const bool base::internal::ClampedMulFastAsmOp< T, U >::is_supported = CheckedMulFastAsmOp<T, U>::is_supported

static

Definition at line 98 of file safe_math_arm_impl.h.

y

template<typename T , typename U >

U base::internal::ClampedMulFastAsmOp< T, U >::y

Initial value:

{
    
    
    if (!IsIntegerArithmeticSafe<int32_t, T, U>::value &&
        !IsIntegerArithmeticSafe<uint32_t, T, U>::value) {
      V result;
      if (CheckedMulFastAsmOp<T, U>::Do(x, y, &result))
        return result;
      return CommonMaxOrMin<V>(IsValueNegative(x) ^ IsValueNegative(y));
    }
 
    assert((FastIntegerArithmeticPromotion<T, U>::is_contained))

Definition at line 101 of file safe_math_arm_impl.h.

                                                       {
    // Use the CheckedMulFastAsmOp for full-width 32-bit values, because
    // it's fewer instructions than promoting and then saturating.
    if (!IsIntegerArithmeticSafe<int32_t, T, U>::value &&
        !IsIntegerArithmeticSafe<uint32_t, T, U>::value) {
      V result;
      if (CheckedMulFastAsmOp<T, U>::Do(x, y, &result))
        return result;
      return CommonMaxOrMin<V>(IsValueNegative(x) ^ IsValueNegative(y));
    }

Referenced by base::internal::ClampedMulFastAsmOp< T, U >::__attribute__().

---

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

• third_party/accessibility/base/numerics/safe_math_arm_impl.h
• third_party/accessibility/base/numerics/safe_math_clang_gcc_impl.h