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pyint.cs
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pyint.cs
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using System;
using System.Runtime.InteropServices;
namespace Python.Runtime
{
/// <summary>
/// Represents a Python integer object. See the documentation at
/// http://www.python.org/doc/current/api/intObjects.html for details.
/// </summary>
public class PyInt : PyNumber
{
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Creates a new PyInt from an existing object reference. Note
/// that the instance assumes ownership of the object reference.
/// The object reference is not checked for type-correctness.
/// </remarks>
public PyInt(IntPtr ptr) : base(ptr)
{
}
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Copy constructor - obtain a PyInt from a generic PyObject. An
/// ArgumentException will be thrown if the given object is not a
/// Python int object.
/// </remarks>
public PyInt(PyObject o) : base()
{
if (!IsIntType(o))
{
throw new ArgumentException("object is not an int");
}
Runtime.XIncref(o.obj);
obj = o.obj;
}
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python int from an int32 value.
/// </remarks>
public PyInt(int value) : base()
{
obj = Runtime.PyInt_FromInt32(value);
if (obj == IntPtr.Zero)
{
throw new PythonException();
}
}
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python int from a uint32 value.
/// </remarks>
[CLSCompliant(false)]
public PyInt(uint value) : base(IntPtr.Zero)
{
obj = Runtime.PyInt_FromInt64((long)value);
if (obj == IntPtr.Zero)
{
throw new PythonException();
}
}
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python int from an int64 value.
/// </remarks>
public PyInt(long value) : base(IntPtr.Zero)
{
obj = Runtime.PyInt_FromInt64(value);
if (obj == IntPtr.Zero)
{
throw new PythonException();
}
}
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python int from a uint64 value.
/// </remarks>
[CLSCompliant(false)]
public PyInt(ulong value) : base(IntPtr.Zero)
{
obj = Runtime.PyInt_FromInt64((long)value);
if (obj == IntPtr.Zero)
{
throw new PythonException();
}
}
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python int from an int16 value.
/// </remarks>
public PyInt(short value) : this((int)value)
{
}
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python int from a uint16 value.
/// </remarks>
[CLSCompliant(false)]
public PyInt(ushort value) : this((int)value)
{
}
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python int from a byte value.
/// </remarks>
public PyInt(byte value) : this((int)value)
{
}
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python int from an sbyte value.
/// </remarks>
[CLSCompliant(false)]
public PyInt(sbyte value) : this((int)value)
{
}
/// <summary>
/// PyInt Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python int from a string value.
/// </remarks>
public PyInt(string value) : base()
{
obj = Runtime.PyInt_FromString(value, IntPtr.Zero, 0);
if (obj == IntPtr.Zero)
{
throw new PythonException();
}
}
/// <summary>
/// IsIntType Method
/// </summary>
///
/// <remarks>
/// Returns true if the given object is a Python int.
/// </remarks>
public static bool IsIntType(PyObject value)
{
return Runtime.PyInt_Check(value.obj);
}
/// <summary>
/// AsInt Method
/// </summary>
///
/// <remarks>
/// <remarks>
/// Convert a Python object to a Python int if possible, raising
/// a PythonException if the conversion is not possible. This is
/// equivalent to the Python expression "int(object)".
/// </remarks>
public static PyInt AsInt(PyObject value)
{
IntPtr op = Runtime.PyNumber_Int(value.obj);
if (op == IntPtr.Zero)
{
throw new PythonException();
}
return new PyInt(op);
}
/// <summary>
/// ToInt16 Method
/// </summary>
///
/// <remarks>
/// Return the value of the Python int object as an int16.
/// </remarks>
public short ToInt16()
{
return System.Convert.ToInt16(this.ToInt32());
}
/// <summary>
/// ToInt32 Method
/// </summary>
///
/// <remarks>
/// Return the value of the Python int object as an int32.
/// </remarks>
public int ToInt32()
{
return Runtime.PyInt_AsLong(obj);
}
/// <summary>
/// ToInt64 Method
/// </summary>
///
/// <remarks>
/// Return the value of the Python int object as an int64.
/// </remarks>
public long ToInt64()
{
return System.Convert.ToInt64(this.ToInt32());
}
}
}