folly::detail::EndianInt< T > Struct Template Reference

#include <Bits.h>

Static Public Member Functions
static T	swap (T x)
static T	big (T x)
static T	little (T x)

Detailed Description

template<class T>
struct folly::detail::EndianInt< T >

Definition at line 199 of file Bits.h.

Member Function Documentation

template<class T >

static T folly::detail::EndianInt< T >::big ( T  x )

inlinestatic

Definition at line 215 of file Bits.h.

References folly::kIsLittleEndian, folly::detail::EndianInt< T >::swap(), and x.

Referenced by folly::Endian::big().

                    {
    return kIsLittleEndian ? EndianInt::swap(x) : x;
  }

template<class T >

static T folly::detail::EndianInt< T >::little ( T  x )

inlinestatic

Definition at line 218 of file Bits.h.

References folly::kIsBigEndian, folly::detail::EndianInt< T >::swap(), and x.

Referenced by folly::Endian::little().

                       {
    return kIsBigEndian ? EndianInt::swap(x) : x;
  }

template<class T >

static T folly::detail::EndianInt< T >::swap ( T  x )

inlinestatic

Definition at line 204 of file Bits.h.

References b, folly::detail::byteswap_gen(), s, folly::T, and x.

Referenced by folly::detail::EndianInt< T >::big(), folly::detail::EndianInt< T >::little(), and folly::Endian::swap().

                     {
    // we implement this with memcpy because that is defined behavior in C++
    // we rely on compilers to optimize away the memcpy calls
    constexpr auto s = sizeof(T);
    using B = typename uint_types_by_size<s>::type;
    B b;
    std::memcpy(&b, &x, s);
    b = byteswap_gen(b);
    std::memcpy(&x, &b, s);
    return x;
  }

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

• proxygen/folly/folly/lang/Bits.h