struct eosio::fixed_point32

Class List > eosio :: fixed_point32

32 bits representation of Fixed Point class. More...

Public Attributes

Public Functions

Detailed Description

This class is implemented to replace the floating point variables and can resolve floating point undetermenistic related issues Example:

fixed_point32<17> b(9.654);
fixed_point32<18> c = a*b;
fixed_point32<24> d = a+b+c;
fixed_point32<24> e = b/a;

Public Attributes Documentation

variable val

int32_t eosio::fixed_point32< Q >::val;

Value of the fixed point represented as int32_t

Public Functions Documentation

function fixed_point32 (1/3)

template<uint8_t QR>
eosio::fixed_point32< Q >::fixed_point32(
    const fixed_point32< QR > & r
)

Construct a new fixed point32 object from another fixed_point32

Parameters:

• r - Another fixed_point32 as source

function fixed_point32 (2/3)

template<uint8_t QR>
eosio::fixed_point32< Q >::fixed_point32(
    const fixed_point64< QR > & r
)

Construct a new fixed point32 object from another fixed_point64. It will be truncated.

Parameters:

• r - Another fixed_point32 as source

function fixed_point32 (3/3)

eosio::fixed_point32< Q >::fixed_point32(
    int32_t param = 0
)

Construct a new fixed point32 object from int32_t

Parameters:

• v - int32_t representation of the fixed point value

function int_part

int32_t eosio::fixed_point32< Q >::int_part() const

Get the integer part of the 64 bit fixed number

Returns:

Returns integer part of the fixed number

Example:

fixed_point32<18> a(1234.455667)
std::cout << a.int_part(); // Output: 1234

function frac_part

uint32_t eosio::fixed_point32< Q >::frac_part() const

function print

void eosio::fixed_point32< Q >::print() const

Prints the fixed point value

function operator= (1/4)

template<uint8_t QR>
fixed_point32& eosio::fixed_point32< Q >::operator=(
    const fixed_point32< QR > & r
)

Assignment operator. Assign fixed_point32 to fixed_point32

Template parameters:

• qr - Precision of the source

Parameters:

• r - Source

Returns:

fixed_point32& - Reference to this object

function operator= (2/4)

template<uint8_t QR>
fixed_point32& eosio::fixed_point32< Q >::operator=(
    const fixed_point64< QR > & r
)

Assignment operator. Assign fixed_point64 to fixed_point32

Template parameters:

• qr - Precision of the source

Parameters:

• r - Source

Returns:

fixed_point32& - Reference to this object

function operator+ (1/2)

template<uint8_t QR>
fixed_point32< (Q>QR)?Q:QR > eosio::fixed_point32< Q >::operator+(
    const fixed_point32< QR > & r
) const

Addition operator

Template parameters:

• QR - Precision of the second addend

Parameters:

• r - Second addend

Returns:

• The result of addition

function operator- (1/2)

template<uint8_t QR>
fixed_point32< (Q>QR)?Q:QR > eosio::fixed_point32< Q >::operator-(
    const fixed_point32< QR > & r
) const

Subtraction operator

Template parameters:

• QR - Precision of the minuend

Parameters:

• r - Minuend

Returns:

• The result of subtraction

function operator*

template<uint8_t QR>
fixed_point64< Q+QR > eosio::fixed_point32< Q >::operator*(
    const fixed_point32< QR > & r
) const

Multiplication operator

Template parameters:

• QR - Precision of the multiplier

Parameters:

• r - Multiplier

Returns:

• The result of multiplication

Multiplication operator for fixed_point32. The result goes to fixed_point64

Note:

Number of decimal on result will be sum of number of decimals of lhs and rhs

Example:

fixed_point64<33> result = fixed_point32<0>(131313) / fixed_point32<0>(2323)

function operator/

template<uint8_t QR>
fixed_point64< Q+32-QR > eosio::fixed_point32< Q >::operator/(
    const fixed_point32< QR > & r
) const

Division operator

Template parameters:

• QR - Precision of the divisor

Parameters:

• r - Divisor

Returns:

• The result of division

Division of two fixed_point32 result will be stored in fixed_point64 Example:

fixed_point64<33> result = fixed_point32<0>(131313) / fixed_point32<0>(2323)

function operator==

template<uint8_t QR>
bool eosio::fixed_point32< Q >::operator==(
    const fixed_point32< QR > & r
)

Equality operator

Template parameters:

• qr - Precision of the source

Parameters:

• r - Source

Returns:

true - if equal

Returns:

false - otherwise

function operator>

template<uint8_t QR>
bool eosio::fixed_point32< Q >::operator>(
    const fixed_point32< QR > & r
)

Greater than operator

Template parameters:

• qr - Precision of the source

Parameters:

• r - Source

Returns:

true - if equal

Returns:

false - otherwise

function operator<

template<uint8_t QR>
bool eosio::fixed_point32< Q >::operator<(
    const fixed_point32< QR > & r
)

Less than operator

Template parameters:

• qr - Precision of the source

Parameters:

• r - Source

Returns:

true - if equal

Returns:

false - otherwise

function operator= (3/4)

template<uint8_t QR>
fixed_point32<Q>& eosio::fixed_point32< Q >::operator=(
    const fixed_point32< QR > & r
)

function operator= (4/4)

template<uint8_t QR>
fixed_point32<Q>& eosio::fixed_point32< Q >::operator=(
    const fixed_point64< QR > & r
)

function operator+ (2/2)

template<uint8_t QR>
fixed_point32< (Q>QR)?Q:QR > eosio::fixed_point32< Q >::operator+(
    const fixed_point32< QR > & rhs
) const

Addition between two fixed_point32 variables and the result goes to fixed_point32

Note:

Number of decimal on result will be max of decimals of lhs and rhs

function operator- (2/2)

template<uint8_t QR>
fixed_point32< (Q>QR)?Q:QR > eosio::fixed_point32< Q >::operator-(
    const fixed_point32< QR > & rhs
) const

Subtraction between two fixed_point32 variables and the result goes to fixed_point32

Note:

Number of decimal on result will be max of decimals of lhs and rhs

The documentation for this class was generated from the following file: libraries/eosiolib/fixedpoint.hpp