Decimal

A struct representing a decimal fixed-point number.

By default, the number of digits after the decimal point is 18. The decimal point position is limited by the maximum value of the size_t data type. Decimal is based on std.bigint.BigInt and have no limitation for the number of significant digits.

Constructors

this this(string number, size_t fixedPointPosition): Constucts an object from a decimal string.
this this(Decimal number, size_t fixedPointPosition): Constucts an object from another Decimal object. This constructor is used to transforming precision.
this this(BigInt number, size_t fixedPointPosition): Constucts an object from a BigInt object.
this this(T number, size_t fixedPointPosition): Constucts an object from an integer number (int/uint, long/ulong, etc.).
this this(real number, size_t fixedPointPosition): Constucts an object from a floating point number. (For good precision, give preference to forming a decimal number from a string.)

Members

Functions

abs Decimal abs(): Gets the modulus.
getSign int getSign(): Gets a sign of the decimal number (-1, 0 or 1).
isInteger bool isInteger(): Check if Decimal has zero fractional part.
isZero bool isZero(): Check if Decimal has zero value.
opBinary Decimal opBinary(Decimal rhs): Implements binary operators between Decimals. Returns an object with the maximum precision of both original objects.
opBinary Decimal opBinary(T rhs): Implements binary operators between Decimal and build-in type values.
opBinaryRight Decimal opBinaryRight(T value): Implements operators with built-in integers on the left-hand side and Decimal on the right-hand side.
opCast T opCast(): Converts to a boolean value.
opCast T opCast(): Converts to a floating type, if possible.
opCast T opCast(): Converts to an integer type, if possible.
opCmp int opCmp(Decimal rhs): Implements comparison of Decimal with other Decimal.
opCmp int opCmp(T rhs): Implements comparison of Decimal with other numeric types and strings.
opEquals bool opEquals(Decimal rhs): Implements Decimal equality test with other Decimal.
opEquals bool opEquals(T rhs): Implements Decimal equality test with buil-in numeric types and strings.
opOpAssign Decimal opOpAssign(T value): Implements assignment operators of the form Decimal op= integer: "+=", "-=", "*=", "/=", "^^=". Position of the fixed point (precision) doesn't change.
opUnary Decimal opUnary(): Implements Decimal unary operator "++".
opUnary Decimal opUnary(): Implements Decimal unary operator "--".
opUnary Decimal opUnary(): Implements Decimal unary operator "+".
opUnary Decimal opUnary(): Implements Decimal unary operator "-".
round Decimal round(size_t lastDigitPosition): Calculates and returns the rounded value. The fixed point position in the return value remains the original.
toFullString string toFullString(): Converts to a human readable decimal string. All characters after the dot (with all zeros) will be shown according to the configured fixed point position.
toString void toString(void delegate(const(char)[]) sink, FormatSpec!char fmt): Convert the Decimal to string, passing it to the given sink.

Decimal

Constructors

Members

Functions

Meta

Source