base::internal::SaturateFastAsmOp< Dst, Src > Struct Template Reference

#include <safe_conversions.h>

Public Member Functions
	__attribute__ ((always_inline)) static Dst Do(Src value)

Static Public Member Functions
static constexpr Dst	Do (Src)

Static Public Attributes
static constexpr bool	is_supported = false

Detailed Description

template<typename Dst, typename Src>
struct base::internal::SaturateFastAsmOp< Dst, Src >

Definition at line 31 of file safe_conversions.h.

Member Function Documentation

__attribute__()

template<typename Dst , typename Src >

base::internal::SaturateFastAsmOp< Dst, Src >::__attribute__ ( (always_inline)  )

inline

Definition at line 27 of file safe_conversions_arm_impl.h.

                                                          {
    int32_t src = value;
    typename std::conditional<std::is_signed<Dst>::value, int32_t,
                              uint32_t>::type result;
    if (std::is_signed<Dst>::value) {
      asm("ssat %[dst], %[shift], %[src]"
          : [dst] "=r"(result)
          : [src] "r"(src), [shift] "n"(IntegerBitsPlusSign<Dst>::value <= 32
                                            ? IntegerBitsPlusSign<Dst>::value
                                            : 32));
    } else {
      asm("usat %[dst], %[shift], %[src]"
          : [dst] "=r"(result)
          : [src] "r"(src), [shift] "n"(IntegerBitsPlusSign<Dst>::value < 32
                                            ? IntegerBitsPlusSign<Dst>::value
                                            : 31));
    }
    return static_cast<Dst>(result);
  }

Do()

template<typename Dst , typename Src >

static constexpr Dst base::internal::SaturateFastAsmOp< Dst, Src >::Do ( Src  )

inlinestaticconstexpr

Definition at line 33 of file safe_conversions.h.

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

Member Data Documentation

is_supported

template<typename Dst , typename Src >

static constexpr bool base::internal::SaturateFastAsmOp< Dst, Src >::is_supported = false

staticconstexpr

Definition at line 32 of file safe_conversions.h.

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

• third_party/accessibility/base/numerics/safe_conversions.h
• third_party/accessibility/base/numerics/safe_conversions_arm_impl.h