123 lines
4.1 KiB
C#
123 lines
4.1 KiB
C#
// ==++==
|
|
//
|
|
// Copyright (c) Microsoft Corporation. All rights reserved.
|
|
//
|
|
// ==--==
|
|
//============================================================
|
|
//
|
|
// Class: Int16.cool
|
|
//
|
|
// Purpose: This class will encapsulate a short and provide an
|
|
// Object representation of it.
|
|
//
|
|
//===========================================================
|
|
|
|
namespace System
|
|
{
|
|
|
|
using System;
|
|
using System.Globalization;
|
|
using System.Runtime.CompilerServices;
|
|
using System.Runtime.InteropServices;
|
|
|
|
//| <include path='docs/doc[@for="Int16"]/*' />
|
|
[StructLayout(LayoutKind.Sequential)]
|
|
public struct Int16 : IComparable, IFormattable
|
|
{
|
|
internal short m_value;
|
|
|
|
//| <include path='docs/doc[@for="Int16.MaxValue"]/*' />
|
|
public const short MaxValue = (short)0x7FFF;
|
|
//| <include path='docs/doc[@for="Int16.MinValue"]/*' />
|
|
public const short MinValue = unchecked((short)0x8000);
|
|
|
|
// Compares this object to another object, returning an integer that
|
|
// indicates the relationship.
|
|
// Returns a value less than zero if this object
|
|
// null is considered to be less than any instance.
|
|
// If object is not of type Int16, this method throws an ArgumentException.
|
|
//
|
|
//| <include path='docs/doc[@for="Int16.CompareTo"]/*' />
|
|
public int CompareTo(Object value) {
|
|
if (value == null) {
|
|
return 1;
|
|
}
|
|
|
|
if (value is Int16) {
|
|
return m_value - ((Int16)value).m_value;
|
|
}
|
|
|
|
throw new ArgumentException("Arg_MustBeInt16");
|
|
}
|
|
|
|
//| <include path='docs/doc[@for="Int16.Equals"]/*' />
|
|
public override bool Equals(Object obj) {
|
|
if (!(obj is Int16)) {
|
|
return false;
|
|
}
|
|
return m_value == ((Int16)obj).m_value;
|
|
}
|
|
|
|
// Returns a HashCode for the Int16
|
|
//| <include path='docs/doc[@for="Int16.GetHashCode"]/*' />
|
|
public override int GetHashCode() {
|
|
return ((int)((ushort)m_value) | (((int)m_value) << 16));
|
|
}
|
|
|
|
|
|
//| <include path='docs/doc[@for="Int16.ToString"]/*' />
|
|
public override String ToString() {
|
|
return ToString(null);
|
|
}
|
|
|
|
//| <include path='docs/doc[@for="Int16.ToString2"]/*' />
|
|
public String ToString(String format) {
|
|
if (m_value < 0 && format != null && format.Length > 0 && (format[0] =='X' || format[0] =='x')) {
|
|
uint temp = (uint)(m_value & 0x0000FFFF);
|
|
return Number.FormatUInt32(temp,format);
|
|
}
|
|
return Number.FormatInt32(m_value, format);
|
|
}
|
|
|
|
//| <include path='docs/doc[@for="Int16.Parse"]/*' />
|
|
public static short Parse(String s) {
|
|
return Parse(s, NumberStyles.Integer);
|
|
}
|
|
|
|
//| <include path='docs/doc[@for="Int16.Parse3"]/*' />
|
|
public static short Parse(String s, NumberStyles style) {
|
|
NumberFormatInfo.ValidateParseStyle(style);
|
|
|
|
int i = Number.ParseInt32(s, style);
|
|
|
|
// We need this check here since we don't allow signs to specified in hex numbers. So we fixup the result
|
|
// for negative numbers
|
|
if (((style & NumberStyles.AllowHexSpecifier) != 0) && (i <= UInt16.MaxValue)) // We are parsing a hexadecimal number
|
|
return (short)i;
|
|
|
|
if (i < MinValue || i > MaxValue) throw new OverflowException("Overflow_Int16");
|
|
return (short)i;
|
|
}
|
|
|
|
//
|
|
// IValue implementation
|
|
//
|
|
|
|
//| <include path='docs/doc[@for="Int16.GetTypeCode"]/*' />
|
|
[NoHeapAllocation]
|
|
public override TypeCode GetTypeCode() {
|
|
return TypeCode.Int16;
|
|
}
|
|
|
|
//
|
|
// This is just designed to prevent compiler warnings.
|
|
// This field is used from native, but we need to prevent the compiler warnings.
|
|
//
|
|
#if _DEBUG
|
|
private void DontTouchThis() {
|
|
m_value = 0;
|
|
}
|
|
#endif
|
|
}
|
|
}
|