Decimal

Behavior is defined by Hook. Number of significant digits is limited by Hook.precision.

Spec: http://speleotrove.com/decimal/decarith.html

struct Decimal (

Hook = Abort

) {

import std.experimental.allocator.common : stateSize;;

import std.BigInt : BigInt;;

static if(useBigInt)

BigInt coefficient;

static if(!(useBigInt))

ulong coefficient;

long exponent;

enum hasClampedMethod;

enum hasRoundedMethod;

enum hasInexactMethod;

enum hasDivisionByZeroMethod;

enum hasInvalidOperationMethod;

enum hasOverflowMethod;

enum hasSubnormalMethod;

enum hasUnderflowMethod;

enum useBigInt;

static if(stateSize!Hook > 0)

alias hook = Hook;

bool clamped;

bool divisionByZero;

bool inexact;

bool invalidOperation;

bool overflow;

bool rounded;

bool subnormal;

bool underflow;

auto opBinary(T rhs);

int opCmp(T d);

bool opEquals(T d);

alias toString = toDecimalString;

auto toDecimalString();

void toDecimalString(Writer w);

}

Constructors

this this(T num): Note: Float construction less accurate that string, Use string construction if possible
this this(S str): implements spec to-number

Members

Aliases

hook alias hook = Hook: Undocumented in source.
toString alias toString = toDecimalString

Functions

opBinary auto opBinary(T rhs): The result has the hook of the left hand side. Invalid operations call onInvalidOperation on the hook on the result and set the result's flag to true. Does not effect the left hand side of the operation.
opCmp int opCmp(T d): The spec says that comparing NANs should yield NAN. Unfortunately this isn't possible in D, as the return value of opCmp must be [-1, 1].
opEquals bool opEquals(T d)
round auto round(): Undocumented in source. Be warned that the author may not have intended to support it.
toDecimalString auto toDecimalString()
void toDecimalString(Writer w): Decimal strings

Manifest constants

hasClampedMethod enum hasClampedMethod;: Undocumented in source.
hasDivisionByZeroMethod enum hasDivisionByZeroMethod;: Undocumented in source.
hasInexactMethod enum hasInexactMethod;: Undocumented in source.
hasInvalidOperationMethod enum hasInvalidOperationMethod;: Undocumented in source.
hasOverflowMethod enum hasOverflowMethod;: Undocumented in source.
hasRoundedMethod enum hasRoundedMethod;: Undocumented in source.
hasSubnormalMethod enum hasSubnormalMethod;: Undocumented in source.
hasUnderflowMethod enum hasUnderflowMethod;: Undocumented in source.
useBigInt enum useBigInt;: Undocumented in source.

Variables

clamped bool clamped;: Public flags
coefficient BigInt coefficient;: Undocumented in source.
coefficient ulong coefficient;: Undocumented in source.
divisionByZero bool divisionByZero;: Public flags
exponent long exponent;: Undocumented in source.
hook Hook hook;: hook is a member variable if it has state, or an alias for Hook otherwise.
inexact bool inexact;: Public flags
inf bool inf;: Undocumented in source.
invalidOperation bool invalidOperation;
overflow bool overflow;: Public flags
qNaN bool qNaN;: Undocumented in source.
rounded bool rounded;: Public flags
sNaN bool sNaN;: Undocumented in source.
sign bool sign;: Undocumented in source.
subnormal bool subnormal;
underflow bool underflow;: Public flags

Meta

Source

See Implementation

stdxdecimal classes

enums

Rounding

functions

decimal

structs