//      for finite argument, only expm1(0)=0 is exact.
//
// Accuracy:
//      according to an error analysis, the error is always less than
//      1 ulp (unit in the last place).
//
// Misc. info.
//      For IEEE double
//          if x >  7.09782712893383973096e+02 then expm1(x) overflow
//
// Constants:
// The hexadecimal values are the intended ones for the following

// two floating-points will be equal exactly.  Hence a naive
// comparison by the == operation often doesn't work.)
//
// Format of IEEE floating-point:
//
//   The most-significant bit being the leftmost, an IEEE
//   floating-point looks like
//
//     sign_bit exponent_bits fraction_bits
//
//   Here, sign_bit is a single bit that designates the sign of the
//   number.
//

	Index        int          // positive integer that starts at one, zero is never used
	MTU          int          // maximum transmission unit
	Name         string       // e.g., "en0", "lo0", "eth0.100"
	HardwareAddr HardwareAddr // IEEE MAC-48, EUI-48 and EUI-64 form
	Flags        Flags        // e.g., FlagUp, FlagLoopback, FlagMulticast
}

type Flags uint

const (
	FlagUp           Flags = 1 << iota // interface is administratively up

// two floating-points will be equal exactly.  Hence a naive
// comparison by the == operation often doesn't work.)
//
// Format of IEEE floating-point:
//
//   The most-significant bit being the leftmost, an IEEE
//   floating-point looks like
//
//     sign_bit exponent_bits fraction_bits
//
//   Here, sign_bit is a single bit that designates the sign of the
//   number.
//

rune('œ')
byte('K')
byte('ÿ')
[]byte("hello¿")
[]byte("a")
bool(true)
string("hello\\xbd\\xb2=\\xbc ⌘")
float64(-12.5)
float32(2.5)`,
		},
		{
			desc: "float edge cases",
			// The two IEEE 754 bit patterns used for the math.Float{64,32}frombits
			// encodings are non-math.NAN quiet-NaN values. Since they are not equal
			// to math.NaN(), they should be re-encoded to their bit patterns. They
			// are, respectively:

// marking the end of the data.
type Reader struct {
	Header       // valid after NewReader or Reader.Reset
	r            flate.Reader
	decompressor io.ReadCloser
	digest       uint32 // CRC-32, IEEE polynomial (section 8)
	size         uint32 // Uncompressed size (section 2.3.1)
	buf          [512]byte
	err          error
	multistream  bool
}

// NewReader creates a new [Reader] reading the given reader.

	1,               // pow(-1, -Inf) IEEE 754-2008
	1,               // pow(-1, +Inf) IEEE 754-2008
	NaN(),           // pow(-1, NaN)
	Inf(1),          // pow(-1/2, -Inf)
	0,               // pow(-1/2, +Inf)
	Inf(1),          // pow(-0, -Inf)
	Inf(1),          // pow(-0, -Pi)
	Inf(1),          // pow(-0, -0.5)
	Inf(-1),         // pow(-0, -3) IEEE 754-2008
	Copysign(0, -1), // pow(-0, 3) IEEE 754-2008

	ChecksumTrailing ChecksumType = 1 << iota

	// ChecksumSHA256 indicates a SHA256 checksum.
	ChecksumSHA256
	// ChecksumSHA1 indicates a SHA-1 checksum.
	ChecksumSHA1
	// ChecksumCRC32 indicates a CRC32 checksum with IEEE table.
	ChecksumCRC32
	// ChecksumCRC32C indicates a CRC32 checksum with Castagnoli table.
	ChecksumCRC32C
	// ChecksumInvalid indicates an invalid checksum.
	ChecksumInvalid

	}
	lower := new(decimal)
	lower.Assign(mantlo*2 + 1)
	lower.Shift(explo - int(flt.mantbits) - 1)

	// The upper and lower bounds are possible outputs only if
	// the original mantissa is even, so that IEEE round-to-even
	// would round to the original mantissa and not the neighbors.
	inclusive := mant%2 == 0

	// As we walk the digits we want to know whether rounding up would fall

   * will return {@code Double.MAX_VALUE}, not {@code Double.POSITIVE_INFINITY}.
   *
   * <p>For the case of {@link RoundingMode#HALF_EVEN}, this implementation uses the IEEE 754
   * default rounding mode: if the two nearest representable values are equally near, the one with
   * the least significant bit zero is chosen. (In such cases, both of the nearest representable