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Diffstat (limited to 'src/mscorlib/src/System/UInt16.cs')
| -rw-r--r-- | src/mscorlib/src/System/UInt16.cs | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/UInt16.cs b/src/mscorlib/src/System/UInt16.cs new file mode 100644 index 0000000000..dba7f97b77 --- /dev/null +++ b/src/mscorlib/src/System/UInt16.cs @@ -0,0 +1,241 @@ +// Licensed to the .NET Foundation under one or more agreements. +// The .NET Foundation licenses this file to you under the MIT license. +// See the LICENSE file in the project root for more information. + +/*============================================================ +** +** +** Purpose: This class will encapsulate a short and provide an +** Object representation of it. +** +** +===========================================================*/ +namespace System { + using System.Globalization; + using System; + using System.Runtime.InteropServices; + using System.Diagnostics.Contracts; + + // Wrapper for unsigned 16 bit integers. +[Serializable] +[CLSCompliant(false), System.Runtime.InteropServices.StructLayout(LayoutKind.Sequential)] +[System.Runtime.InteropServices.ComVisible(true)] + public struct UInt16 : IComparable, IFormattable, IConvertible + , IComparable<UInt16>, IEquatable<UInt16> + { + private ushort m_value; + + public const ushort MaxValue = (ushort)0xFFFF; + public const ushort MinValue = 0; + + + // 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 UInt16, this method throws an ArgumentException. + // + public int CompareTo(Object value) { + if (value == null) { + return 1; + } + if (value is UInt16) { + return ((int)m_value - (int)(((UInt16)value).m_value)); + } + throw new ArgumentException(Environment.GetResourceString("Arg_MustBeUInt16")); + } + + public int CompareTo(UInt16 value) { + return ((int)m_value - (int)value); + } + + public override bool Equals(Object obj) { + if (!(obj is UInt16)) { + return false; + } + return m_value == ((UInt16)obj).m_value; + } + + [System.Runtime.Versioning.NonVersionable] + public bool Equals(UInt16 obj) + { + return m_value == obj; + } + + // Returns a HashCode for the UInt16 + public override int GetHashCode() { + return (int)m_value; + } + + // Converts the current value to a String in base-10 with no extra padding. + [System.Security.SecuritySafeCritical] // auto-generated + public override String ToString() { + Contract.Ensures(Contract.Result<String>() != null); + return Number.FormatUInt32(m_value, null, NumberFormatInfo.CurrentInfo); + } + + [System.Security.SecuritySafeCritical] // auto-generated + public String ToString(IFormatProvider provider) { + Contract.Ensures(Contract.Result<String>() != null); + return Number.FormatUInt32(m_value, null, NumberFormatInfo.GetInstance(provider)); + } + + + [System.Security.SecuritySafeCritical] // auto-generated + public String ToString(String format) { + Contract.Ensures(Contract.Result<String>() != null); + return Number.FormatUInt32(m_value, format, NumberFormatInfo.CurrentInfo); + } + + [System.Security.SecuritySafeCritical] // auto-generated + public String ToString(String format, IFormatProvider provider) { + Contract.Ensures(Contract.Result<String>() != null); + return Number.FormatUInt32(m_value, format, NumberFormatInfo.GetInstance(provider)); + } + + [CLSCompliant(false)] + public static ushort Parse(String s) { + return Parse(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo); + } + + [CLSCompliant(false)] + public static ushort Parse(String s, NumberStyles style) { + NumberFormatInfo.ValidateParseStyleInteger(style); + return Parse(s, style, NumberFormatInfo.CurrentInfo); + } + + + [CLSCompliant(false)] + public static ushort Parse(String s, IFormatProvider provider) { + return Parse(s, NumberStyles.Integer, NumberFormatInfo.GetInstance(provider)); + } + + [CLSCompliant(false)] + public static ushort Parse(String s, NumberStyles style, IFormatProvider provider) { + NumberFormatInfo.ValidateParseStyleInteger(style); + return Parse(s, style, NumberFormatInfo.GetInstance(provider)); + } + + private static ushort Parse(String s, NumberStyles style, NumberFormatInfo info) { + + uint i = 0; + try { + i = Number.ParseUInt32(s, style, info); + } + catch(OverflowException e) { + throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"), e); + } + + if (i > MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16")); + return (ushort)i; + } + + [CLSCompliant(false)] + public static bool TryParse(String s, out UInt16 result) { + return TryParse(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result); + } + + [CLSCompliant(false)] + public static bool TryParse(String s, NumberStyles style, IFormatProvider provider, out UInt16 result) { + NumberFormatInfo.ValidateParseStyleInteger(style); + return TryParse(s, style, NumberFormatInfo.GetInstance(provider), out result); + } + + private static bool TryParse(String s, NumberStyles style, NumberFormatInfo info, out UInt16 result) { + + result = 0; + UInt32 i; + if (!Number.TryParseUInt32(s, style, info, out i)) { + return false; + } + if (i > MaxValue) { + return false; + } + result = (UInt16) i; + return true; + } + + // + // IConvertible implementation + // + + public TypeCode GetTypeCode() { + return TypeCode.UInt16; + } + + /// <internalonly/> + bool IConvertible.ToBoolean(IFormatProvider provider) { + return Convert.ToBoolean(m_value); + } + + /// <internalonly/> + char IConvertible.ToChar(IFormatProvider provider) { + return Convert.ToChar(m_value); + } + + /// <internalonly/> + sbyte IConvertible.ToSByte(IFormatProvider provider) { + return Convert.ToSByte(m_value); + } + + /// <internalonly/> + byte IConvertible.ToByte(IFormatProvider provider) { + return Convert.ToByte(m_value); + } + + /// <internalonly/> + short IConvertible.ToInt16(IFormatProvider provider) { + return Convert.ToInt16(m_value); + } + + /// <internalonly/> + ushort IConvertible.ToUInt16(IFormatProvider provider) { + return m_value; + } + + /// <internalonly/> + int IConvertible.ToInt32(IFormatProvider provider) { + return Convert.ToInt32(m_value); + } + + /// <internalonly/> + uint IConvertible.ToUInt32(IFormatProvider provider) { + return Convert.ToUInt32(m_value); + } + + /// <internalonly/> + long IConvertible.ToInt64(IFormatProvider provider) { + return Convert.ToInt64(m_value); + } + + /// <internalonly/> + ulong IConvertible.ToUInt64(IFormatProvider provider) { + return Convert.ToUInt64(m_value); + } + + /// <internalonly/> + float IConvertible.ToSingle(IFormatProvider provider) { + return Convert.ToSingle(m_value); + } + + /// <internalonly/> + double IConvertible.ToDouble(IFormatProvider provider) { + return Convert.ToDouble(m_value); + } + + /// <internalonly/> + Decimal IConvertible.ToDecimal(IFormatProvider provider) { + return Convert.ToDecimal(m_value); + } + + /// <internalonly/> + DateTime IConvertible.ToDateTime(IFormatProvider provider) { + throw new InvalidCastException(Environment.GetResourceString("InvalidCast_FromTo", "UInt16", "DateTime")); + } + + /// <internalonly/> + Object IConvertible.ToType(Type type, IFormatProvider provider) { + return Convert.DefaultToType((IConvertible)this, type, provider); + } + } +} |