Package java.math

Examples of java.math.BigDecimal.precision()

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      Decimal38SparseHolder dch = new Decimal38SparseHolder();

      BigDecimal bigDecimal = new BigDecimal(decimal);

      dch.scale = bigDecimal.scale();
      dch.precision = bigDecimal.precision();
      dch.setSign(bigDecimal.signum() == -1);
      dch.start = 0;


      dch.buffer = Unpooled.wrappedBuffer(new byte[dch.maxPrecision * DecimalUtility.integerSize]);
 
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            int sign2 = val.isInfinity() ? val.infinitySign : val.value.signum();
            return newInfinity(runtime, sign1 * sign2);
        }

        BigDecimal res = value.multiply(val.value);
        if (res.precision() > digits) {
            // TODO: rounding mode should not be hard-coded. See #mode.
            res = res.round(new MathContext(digits,  RoundingMode.HALF_UP));
        }
        return new RubyBigDecimal(runtime, res).setResult();
    }
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        // TODO: no need to calculate every time.
        if (isZero()) {
            return 0;
        }
        BigDecimal val = value.abs().stripTrailingZeros();
        return val.precision() - val.scale();
    }

    @JRubyMethod(name = "sqrt", required = 1)
    public IRubyObject sqrt(IRubyObject arg) {
        Ruby runtime = getRuntime();
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      final ClassWriter cw = rootCompiler().cw();
      final GeneratorAdapter ci = rootCompiler().initializer();
      result = "C$" + Integer.toString( this.constantPool.size() );
      cw.visitField( Opcodes.ACC_STATIC + Opcodes.ACC_FINAL, result, B, null, null ).visitEnd();
      final BigDecimal bigValue = new BigDecimal( _value );
      if (bigValue.precision() <= MAX_LONG_PREC) {
        final long longValue = bigValue.unscaledValue().longValue();
        ci.push( longValue );
        ci.push( bigValue.scale() );
        ci.visitMethodInsn( Opcodes.INVOKESTATIC, BNAME, "valueOf", LI2B );
        if (needsAdjustment( bigValue ) ) {
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        BigDecimal n1 = new BigDecimal("1.125");
        if (n1.precision() != 4 || n1.scale() != 3) {
            throw new RuntimeException("Wrong: " +  n1);
        }
        BigDecimal n2 = new BigDecimal("1.125").subtract(new BigDecimal("0.005"));
        if (n2.precision() != 4 || n2.scale() != 3) {
            throw new RuntimeException("Wrong: " +  n2);
        }
        BigDecimal n3 = new BigDecimal("123");
        BigDecimal n4 = new BigDecimal("6000");
        BigDecimal n5 = new BigDecimal("1.12345").subtract(new BigDecimal("0.12345"));
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            throw new RuntimeException("Wrong: " +  n2);
        }
        BigDecimal n3 = new BigDecimal("123");
        BigDecimal n4 = new BigDecimal("6000");
        BigDecimal n5 = new BigDecimal("1.12345").subtract(new BigDecimal("0.12345"));
        if (n5.precision() != 6 || n5.scale() != 5) {
            throw new RuntimeException("Wrong: " +  n5);
        }
        BigDecimal n6 = new BigDecimal("0");
        BigDecimal n7 = new BigDecimal("0.001").subtract(new BigDecimal("0.001"));
        BigDecimal n8 = new BigDecimal("60000.5").subtract(new BigDecimal("0.5"));
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        assertEquals(-1, NumberUtil.getSignum(BigInteger.valueOf(-3)));
    }
   
    public void testIsBigDecimalInteger() {
        BigDecimal n1 = new BigDecimal("1.125");
        if (n1.precision() != 4 || n1.scale() != 3) {
            throw new RuntimeException("Wrong: " +  n1);
        }
        BigDecimal n2 = new BigDecimal("1.125").subtract(new BigDecimal("0.005"));
        if (n2.precision() != 4 || n2.scale() != 3) {
            throw new RuntimeException("Wrong: " +  n2);
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    }
    else {
      bigNum = new BigDecimal( num.toString() );
    }

    int integerPartLength = bigNum.precision() - bigNum.scale();
    int fractionPartLength = bigNum.scale() < 0 ? 0 : bigNum.scale();

    return ( maxIntegerLength >= integerPartLength && maxFractionLength >= fractionPartLength );
  }
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    BigDecimal bigNum = getBigDecimalValue( str );
    if ( bigNum == null ) {
      return false;
    }

    int integerPartLength = bigNum.precision() - bigNum.scale();
    int fractionPartLength = bigNum.scale() < 0 ? 0 : bigNum.scale();

    return ( maxIntegerLength >= integerPartLength && maxFractionLength >= fractionPartLength );
  }
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        BigDecimal b1_negate = b1.negate();
        BigDecimal b2_negate = b2.negate();

        b1_negate.precision();
        b2_negate.precision();

        failures += roundAway1(b1,        b2);
        failures += roundAway1(b1,        b2_negate);
        failures += roundAway1(b1_negate, b2);
        failures += roundAway1(b1_negate, b2_negate);
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