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FixedPointsArduino
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Implement bitwise shift operators (#82)

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The bitwise shift operators are provided solely for optimisation purposes.
pull/85/head
Pharap 4 years ago committed by GitHub
parent af74462255
commit 892df22ee8
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 124 additions and 38 deletions
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  1. 81
      src/FixedPoints/SFixedFreeFunctions.h
  2. 81
      src/FixedPoints/UFixedFreeFunctions.h

81
src/FixedPoints/SFixedFreeFunctions.h
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@ -277,6 +277,28 @@ constexpr auto operator /(const SFixed<IntegerLeft, FractionLeft> & left, const
{\
return (SFixed<Integer, Fraction>(left) op right);\
}
#define DELETED_BITSHIFT_OPERATOR( type, op )\
template< unsigned Integer, unsigned Fraction >\
constexpr SFixed<Integer, Fraction> operator op (const SFixed<Integer, Fraction> & left, const type & right) = delete;\
\
template< unsigned Integer, unsigned Fraction >\
inline SFixed<Integer, Fraction> operator op##= (const SFixed<Integer, Fraction> & left, const type & right) = delete;
#define BITSHIFT_OPERATOR( type, op )\
template< unsigned Integer, unsigned Fraction >\
constexpr SFixed<Integer, Fraction> operator op (const SFixed<Integer, Fraction> & left, const type & right)\
{\
using InternalType = typename SFixed<Integer, Fraction>::InternalType;\
return SFixed<Integer, Fraction>::fromInternal(static_cast<InternalType>(left.getInternal() op right));\
}\
\
template< unsigned Integer, unsigned Fraction >\
inline SFixed<Integer, Fraction> & operator op##= (SFixed<Integer, Fraction> & left, const type & right)\
{\
left = (left op right);\
return left;\
}
#define LOGIC_OPERATORS( type )\
LOGIC_OPERATOR( type, == )\
@ -291,33 +313,54 @@ constexpr auto operator /(const SFixed<IntegerLeft, FractionLeft> & left, const
ARITHMETIC_OPERATOR( type, - )\
ARITHMETIC_OPERATOR( type, * )\
ARITHMETIC_OPERATOR( type, / )
#define DELETED_BITSHIFT_OPERATORS( type ) \
DELETED_BITSHIFT_OPERATOR( type, << )\
DELETED_BITSHIFT_OPERATOR( type, >> )
#define BITSHIFT_OPERATORS( type ) \
BITSHIFT_OPERATOR( type, << )\
BITSHIFT_OPERATOR( type, >> )
#define OPERATORS( type ) \
#define FLOAT_OPERATORS( type ) \
LOGIC_OPERATORS( type )\
ARITHMETIC_OPERATORS( type )
OPERATORS( float )
OPERATORS( double )
OPERATORS( long double )
OPERATORS( char )
OPERATORS( unsigned char )
OPERATORS( signed char )
OPERATORS( unsigned short int )
OPERATORS( signed short int )
OPERATORS( unsigned int )
OPERATORS( signed int )
OPERATORS( unsigned long int )
OPERATORS( signed long int )
OPERATORS( unsigned long long int )
OPERATORS( signed long long int )
ARITHMETIC_OPERATORS( type )\
DELETED_BITSHIFT_OPERATORS( type )
#define INTEGER_OPERATORS( type ) \
LOGIC_OPERATORS( type )\
ARITHMETIC_OPERATORS( type )\
BITSHIFT_OPERATORS( type )
FLOAT_OPERATORS( float )
FLOAT_OPERATORS( double )
FLOAT_OPERATORS( long double )
INTEGER_OPERATORS( char )
INTEGER_OPERATORS( unsigned char )
INTEGER_OPERATORS( signed char )
INTEGER_OPERATORS( unsigned short int )
INTEGER_OPERATORS( signed short int )
INTEGER_OPERATORS( unsigned int )
INTEGER_OPERATORS( signed int )
INTEGER_OPERATORS( unsigned long int )
INTEGER_OPERATORS( signed long int )
INTEGER_OPERATORS( unsigned long long int )
INTEGER_OPERATORS( signed long long int )
// Prevent Macro-bleed:
#undef OPERATORS
#undef INTEGER_OPERATORS
#undef FLOAT_OPERATORS
#undef ARITHMETIC_OPERATORS
#undef LOGIC_OPERATORS
#undef BITSHIFT_OPERATORS
#undef DELETED_BITSHIFT_OPERATORS
#undef ARITHMETIC_OPERATOR
#undef LOGIC_OPERATOR
#undef BITSHIFT_OPERATOR
#undef DELETED_BITSHIFT_OPERATOR
FIXED_POINTS_END_NAMESPACE

81
src/FixedPoints/UFixedFreeFunctions.h
Unescape View File

@ -277,6 +277,28 @@ constexpr auto operator /(const UFixed<IntegerLeft, FractionLeft> & left, const
{\
return (UFixed<Integer, Fraction>(left) op right);\
}
#define DELETED_BITSHIFT_OPERATOR( type, op )\
template< unsigned Integer, unsigned Fraction >\
constexpr UFixed<Integer, Fraction> operator op (const UFixed<Integer, Fraction> & left, const type & right) = delete;\
\
template< unsigned Integer, unsigned Fraction >\
inline UFixed<Integer, Fraction> operator op##= (const UFixed<Integer, Fraction> & left, const type & right) = delete;
#define BITSHIFT_OPERATOR( type, op )\
template< unsigned Integer, unsigned Fraction >\
constexpr UFixed<Integer, Fraction> operator op (const UFixed<Integer, Fraction> & left, const type & right)\
{\
using InternalType = typename UFixed<Integer, Fraction>::InternalType;\
return UFixed<Integer, Fraction>::fromInternal(static_cast<InternalType>(left.getInternal() op right));\
}\
\
template< unsigned Integer, unsigned Fraction >\
inline UFixed<Integer, Fraction> & operator op##= (UFixed<Integer, Fraction> & left, const type & right)\
{\
left = (left op right);\
return left;\
}
#define LOGIC_OPERATORS( type )\
LOGIC_OPERATOR( type, == )\
@ -291,33 +313,54 @@ constexpr auto operator /(const UFixed<IntegerLeft, FractionLeft> & left, const
ARITHMETIC_OPERATOR( type, - )\
ARITHMETIC_OPERATOR( type, * )\
ARITHMETIC_OPERATOR( type, / )
#define DELETED_BITSHIFT_OPERATORS( type ) \
DELETED_BITSHIFT_OPERATOR( type, << )\
DELETED_BITSHIFT_OPERATOR( type, >> )
#define BITSHIFT_OPERATORS( type ) \
BITSHIFT_OPERATOR( type, << )\
BITSHIFT_OPERATOR( type, >> )
#define OPERATORS( type ) \
#define FLOAT_OPERATORS( type ) \
LOGIC_OPERATORS( type )\
ARITHMETIC_OPERATORS( type )
OPERATORS( float )
OPERATORS( double )
OPERATORS( long double )
OPERATORS( char )
OPERATORS( unsigned char )
OPERATORS( signed char )
OPERATORS( unsigned short int )
OPERATORS( signed short int )
OPERATORS( unsigned int )
OPERATORS( signed int )
OPERATORS( unsigned long int )
OPERATORS( signed long int )
OPERATORS( unsigned long long int )
OPERATORS( signed long long int )
ARITHMETIC_OPERATORS( type )\
DELETED_BITSHIFT_OPERATORS( type )
#define INTEGER_OPERATORS( type ) \
LOGIC_OPERATORS( type )\
ARITHMETIC_OPERATORS( type )\
BITSHIFT_OPERATORS( type )
FLOAT_OPERATORS( float )
FLOAT_OPERATORS( double )
FLOAT_OPERATORS( long double )
INTEGER_OPERATORS( char )
INTEGER_OPERATORS( unsigned char )
INTEGER_OPERATORS( signed char )
INTEGER_OPERATORS( unsigned short int )
INTEGER_OPERATORS( signed short int )
INTEGER_OPERATORS( unsigned int )
INTEGER_OPERATORS( signed int )
INTEGER_OPERATORS( unsigned long int )
INTEGER_OPERATORS( signed long int )
INTEGER_OPERATORS( unsigned long long int )
INTEGER_OPERATORS( signed long long int )
// Prevent Macro-bleed:
#undef OPERATORS
#undef INTEGER_OPERATORS
#undef FLOAT_OPERATORS
#undef ARITHMETIC_OPERATORS
#undef LOGIC_OPERATORS
#undef BITSHIFT_OPERATORS
#undef DELETED_BITSHIFT_OPERATORS
#undef ARITHMETIC_OPERATOR
#undef LOGIC_OPERATOR
#undef BITSHIFT_OPERATOR
#undef DELETED_BITSHIFT_OPERATOR
FIXED_POINTS_END_NAMESPACE
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