0.5.0

New features

• Common BigNumber interface for all classes, with the following methods:
  • sign() and derived methods (isZero(), isPositive(), ...)
  • compareTo() and derived methods (isEqualTo(), isGreaterThan(), ...) that work across different BigNumber types
  • toBigInteger(), toBigDecimal(), toBigRational() conversion methods
  • toInteger() and toFloat() conversion methods to native types
• Unified of() behaviour: every class now accepts any type of number, provided that it can be safely converted to the current type
• New method: BigDecimal::exactlyDividedBy(); this method automatically computes the scale of the result, provided that the division yields a finite number of digits
• New methods: BigRational::quotient() and remainder()
• Fine-grained exceptions: DivisionByZeroException, RoundingNecessaryException, NumberFormatException
• Factory methods zero(), one() and ten() available in all classes
• Rounding mode reintroduced in BigInteger::dividedBy()

This release also comes with many performance improvements.

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Breaking changes

• BigInteger:
  • getSign() is renamed to sign()
  • toString() is renamed to toBase()
  • BigInteger::dividedBy() now throws an exception by default if the remainder is not zero; use quotient() to get the previous behaviour
• BigDecimal:
  • getSign() is renamed to sign()
  • getUnscaledValue() is renamed to unscaledValue()
  • getScale() is renamed to scale()
  • getIntegral() is renamed to integral()
  • getFraction() is renamed to fraction()
  • divideAndRemainder() is renamed to quotientAndRemainder()
  • dividedBy() now takes a mandatory $scale parameter before the rounding mode
  • toBigInteger() does not accept a $roundingMode parameter anymore
  • toBigRational() does not simplify the fraction anymore; explicitly add ->simplified() to get the previous behaviour
• BigRational:
  • getSign() is renamed to sign()
  • getNumerator() is renamed to numerator()
  • getDenominator() is renamed to denominator()
  • of() is renamed to nd(), while parse() is renamed to of()
• Miscellaneous:
  • ArithmeticException is moved to an Exception\ sub-namespace
  • of() factory methods now throw NumberFormatException instead of InvalidArgumentException