folly::detail::SignedValueHandler< T, true > Class Template Reference

Public Member Functions
ConversionCode	init (const char *&b)
ConversionCode	overflow ()
template<typename U >
Expected< T, ConversionCode >	finalize (U value)

Private Attributes
bool	negative_

Detailed Description

template<typename T>
class folly::detail::SignedValueHandler< T, true >

Definition at line 467 of file Conv.cpp.

Member Function Documentation

template<typename T >

template<typename U >

Expected<T, ConversionCode> folly::detail::SignedValueHandler< T, true >::finalize ( U  value )

inline

Definition at line 488 of file Conv.cpp.

References folly::makeUnexpected(), folly::NEGATIVE_OVERFLOW, folly::POSITIVE_OVERFLOW, folly::T, and UNLIKELY.

                                                {
    T rv;
    if (negative_) {
      rv = T(-value);
      if (UNLIKELY(rv > 0)) {
        return makeUnexpected(ConversionCode::NEGATIVE_OVERFLOW);
      }
    } else {
      rv = T(value);
      if (UNLIKELY(rv < 0)) {
        return makeUnexpected(ConversionCode::POSITIVE_OVERFLOW);
      }
    }
    return rv;
  }

template<typename T >

ConversionCode folly::detail::SignedValueHandler< T, true >::init ( const char *&  b )

inline

Definition at line 469 of file Conv.cpp.

References b, folly::INVALID_LEADING_CHAR, folly::SUCCESS, and UNLIKELY.

                                      {
    negative_ = false;
    if (!std::isdigit(*b)) {
      if (*b == '-') {
        negative_ = true;
      } else if (UNLIKELY(*b != '+')) {
        return ConversionCode::INVALID_LEADING_CHAR;
      }
      ++b;
    }
    return ConversionCode::SUCCESS;
  }

template<typename T >

ConversionCode folly::detail::SignedValueHandler< T, true >::overflow ( )

inline

Definition at line 482 of file Conv.cpp.

References folly::NEGATIVE_OVERFLOW, and folly::POSITIVE_OVERFLOW.

                            {
    return negative_ ? ConversionCode::NEGATIVE_OVERFLOW
                     : ConversionCode::POSITIVE_OVERFLOW;
  }

Member Data Documentation

template<typename T >

bool folly::detail::SignedValueHandler< T, true >::negative_

private

Definition at line 505 of file Conv.cpp.

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

• proxygen/folly/folly/Conv.cpp