public static void Write(double value, BinaryWriter writer)
{
if (double.IsNaN(value))
{
writer.Write(nan_symbol_);
return;
}
if (double.IsInfinity(value))
{
if (value < 0)
{
writer.Write((byte)'-');
}
writer.Write(infinity_symbol_);
return;
}
if (value == 0.0)
{
writer.Write((byte)'0');
return;
}
if (value < 0.0)
{
writer.Write((byte)'-');
value = -value;
}
byte[] decimal_rep = ts_decimal_rep;
if (decimal_rep == null)
{
decimal_rep = ts_decimal_rep = new byte[kBase10MaximalLength + 1];
}
GrisuDouble v = new GrisuDouble(value);
DiyFp w = v.AsNormalizedDiyFp();
// boundary_minus and boundary_plus are the boundaries between v and its
// closest floating-point neighbors. Any number strictly between
// boundary_minus and boundary_plus will round to v when convert to a double.
// Grisu3 will never output representations that lie exactly on a boundary.
DiyFp boundary_minus, boundary_plus;
v.NormalizedBoundaries(out boundary_minus, out boundary_plus);
int decimal_rep_length;
int decimal_exponent;
if (Grisu3(w, boundary_minus, boundary_plus, decimal_rep, out decimal_rep_length, out decimal_exponent))
{
CreateRepresentation(decimal_rep, decimal_rep_length, decimal_rep_length + decimal_exponent, writer);
}
else
{
writer.Write(Encoding.ASCII.GetBytes(value.ToString("R", CultureInfo.InvariantCulture)));
}
}
public static void Write(double value, BinaryWriter writer)
{
if (double.IsNaN(value)) {
writer.Write(nan_symbol_);
return;
}
if (double.IsInfinity(value)) {
if (value < 0)
writer.Write((byte)'-');
writer.Write(infinity_symbol_);
return;
}
if (value == 0.0) {
writer.Write((byte)'0');
return;
}
if (value < 0.0) {
writer.Write((byte)'-');
value = -value;
}
byte[] decimal_rep = ts_decimal_rep;
if (decimal_rep == null)
decimal_rep = ts_decimal_rep = new byte[kBase10MaximalLength + 1];
GrisuDouble v = new GrisuDouble(value);
DiyFp w = v.AsNormalizedDiyFp();
// boundary_minus and boundary_plus are the boundaries between v and its
// closest floating-point neighbors. Any number strictly between
// boundary_minus and boundary_plus will round to v when convert to a double.
// Grisu3 will never output representations that lie exactly on a boundary.
DiyFp boundary_minus, boundary_plus;
v.NormalizedBoundaries(out boundary_minus, out boundary_plus);
int decimal_rep_length;
int decimal_exponent;
if (Grisu3(w, boundary_minus, boundary_plus, decimal_rep, out decimal_rep_length, out decimal_exponent))
CreateRepresentation(decimal_rep, decimal_rep_length, decimal_rep_length + decimal_exponent, writer);
else
writer.Write(Encoding.ASCII.GetBytes(value.ToString("R", CultureInfo.InvariantCulture)));
}
