diff options
Diffstat (limited to 'src/mscorlib/shared/System/Int16.cs')
| -rw-r--r-- | src/mscorlib/shared/System/Int16.cs | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Int16.cs b/src/mscorlib/shared/System/Int16.cs new file mode 100644 index 0000000000..6aaf4280d3 --- /dev/null +++ b/src/mscorlib/shared/System/Int16.cs @@ -0,0 +1,320 @@ +// 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. +** +** +===========================================================*/ + +using System.Diagnostics.Contracts; +using System.Globalization; +using System.Runtime.CompilerServices; +using System.Runtime.InteropServices; +using System.Runtime.Versioning; + +namespace System +{ + [Serializable] + [StructLayout(LayoutKind.Sequential)] + [TypeForwardedFrom("mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")] + public struct Int16 : IComparable, IConvertible, IFormattable, IComparable<Int16>, IEquatable<Int16> + { + private short m_value; // Do not rename (binary serialization) + + public const short MaxValue = (short)0x7FFF; + 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. + // + public int CompareTo(Object value) + { + if (value == null) + { + return 1; + } + + if (value is Int16) + { + return m_value - ((Int16)value).m_value; + } + + throw new ArgumentException(SR.Arg_MustBeInt16); + } + + public int CompareTo(Int16 value) + { + return m_value - value; + } + + public override bool Equals(Object obj) + { + if (!(obj is Int16)) + { + return false; + } + return m_value == ((Int16)obj).m_value; + } + + [NonVersionable] + public bool Equals(Int16 obj) + { + return m_value == obj; + } + + // Returns a HashCode for the Int16 + public override int GetHashCode() + { + return ((int)((ushort)m_value) | (((int)m_value) << 16)); + } + + + public override String ToString() + { + Contract.Ensures(Contract.Result<String>() != null); + return Number.FormatInt32(m_value, null, NumberFormatInfo.CurrentInfo); + } + + public String ToString(IFormatProvider provider) + { + Contract.Ensures(Contract.Result<String>() != null); + return Number.FormatInt32(m_value, null, NumberFormatInfo.GetInstance(provider)); + } + + public String ToString(String format) + { + Contract.Ensures(Contract.Result<String>() != null); + return ToString(format, NumberFormatInfo.CurrentInfo); + } + + public String ToString(String format, IFormatProvider provider) + { + Contract.Ensures(Contract.Result<String>() != null); + return ToString(format, NumberFormatInfo.GetInstance(provider)); + } + + private String ToString(String format, NumberFormatInfo info) + { + Contract.Ensures(Contract.Result<String>() != null); + + 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, info); + } + return Number.FormatInt32(m_value, format, info); + } + + public static short Parse(String s) + { + if (s == null) ThrowHelper.ThrowArgumentNullException(ExceptionArgument.s); + return Parse(s.AsReadOnlySpan(), NumberStyles.Integer, NumberFormatInfo.CurrentInfo); + } + + public static short Parse(String s, NumberStyles style) + { + NumberFormatInfo.ValidateParseStyleInteger(style); + if (s == null) ThrowHelper.ThrowArgumentNullException(ExceptionArgument.s); + return Parse(s.AsReadOnlySpan(), style, NumberFormatInfo.CurrentInfo); + } + + public static short Parse(String s, IFormatProvider provider) + { + if (s == null) ThrowHelper.ThrowArgumentNullException(ExceptionArgument.s); + return Parse(s.AsReadOnlySpan(), NumberStyles.Integer, NumberFormatInfo.GetInstance(provider)); + } + + public static short Parse(String s, NumberStyles style, IFormatProvider provider) + { + NumberFormatInfo.ValidateParseStyleInteger(style); + if (s == null) ThrowHelper.ThrowArgumentNullException(ExceptionArgument.s); + return Parse(s.AsReadOnlySpan(), style, NumberFormatInfo.GetInstance(provider)); + } + + public static short Parse(ReadOnlySpan<char> s, NumberStyles style = NumberStyles.Integer, IFormatProvider provider = null) + { + NumberFormatInfo.ValidateParseStyleInteger(style); + return Parse(s, style, NumberFormatInfo.GetInstance(provider)); + } + + private static short Parse(ReadOnlySpan<char> s, NumberStyles style, NumberFormatInfo info) + { + int i = 0; + try + { + i = Number.ParseInt32(s, style, info); + } + catch (OverflowException e) + { + throw new OverflowException(SR.Overflow_Int16, e); + } + + // 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) + { // We are parsing a hexadecimal number + if ((i < 0) || (i > UInt16.MaxValue)) + { + throw new OverflowException(SR.Overflow_Int16); + } + return (short)i; + } + + if (i < MinValue || i > MaxValue) throw new OverflowException(SR.Overflow_Int16); + return (short)i; + } + + public static bool TryParse(String s, out Int16 result) + { + if (s == null) + { + result = 0; + return false; + } + + return TryParse(s.AsReadOnlySpan(), NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result); + } + + public static bool TryParse(String s, NumberStyles style, IFormatProvider provider, out Int16 result) + { + NumberFormatInfo.ValidateParseStyleInteger(style); + + if (s == null) + { + result = 0; + return false; + } + + return TryParse(s.AsReadOnlySpan(), style, NumberFormatInfo.GetInstance(provider), out result); + } + + public static bool TryParse(ReadOnlySpan<char> s, out Int16 result, NumberStyles style = NumberStyles.Integer, IFormatProvider provider = null) + { + NumberFormatInfo.ValidateParseStyleInteger(style); + return TryParse(s, style, NumberFormatInfo.GetInstance(provider), out result); + } + + private static bool TryParse(ReadOnlySpan<char> s, NumberStyles style, NumberFormatInfo info, out Int16 result) + { + result = 0; + int i; + if (!Number.TryParseInt32(s, style, info, out i)) + { + return false; + } + + // 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) + { // We are parsing a hexadecimal number + if ((i < 0) || i > UInt16.MaxValue) + { + return false; + } + result = (Int16)i; + return true; + } + + if (i < MinValue || i > MaxValue) + { + return false; + } + result = (Int16)i; + return true; + } + + // + // IConvertible implementation + // + + public TypeCode GetTypeCode() + { + return TypeCode.Int16; + } + + + bool IConvertible.ToBoolean(IFormatProvider provider) + { + return Convert.ToBoolean(m_value); + } + + char IConvertible.ToChar(IFormatProvider provider) + { + return Convert.ToChar(m_value); + } + + sbyte IConvertible.ToSByte(IFormatProvider provider) + { + return Convert.ToSByte(m_value); + } + + byte IConvertible.ToByte(IFormatProvider provider) + { + return Convert.ToByte(m_value); + } + + short IConvertible.ToInt16(IFormatProvider provider) + { + return m_value; + } + + ushort IConvertible.ToUInt16(IFormatProvider provider) + { + return Convert.ToUInt16(m_value); + } + + int IConvertible.ToInt32(IFormatProvider provider) + { + return Convert.ToInt32(m_value); + } + + uint IConvertible.ToUInt32(IFormatProvider provider) + { + return Convert.ToUInt32(m_value); + } + + long IConvertible.ToInt64(IFormatProvider provider) + { + return Convert.ToInt64(m_value); + } + + ulong IConvertible.ToUInt64(IFormatProvider provider) + { + return Convert.ToUInt64(m_value); + } + + float IConvertible.ToSingle(IFormatProvider provider) + { + return Convert.ToSingle(m_value); + } + + double IConvertible.ToDouble(IFormatProvider provider) + { + return Convert.ToDouble(m_value); + } + + Decimal IConvertible.ToDecimal(IFormatProvider provider) + { + return Convert.ToDecimal(m_value); + } + + DateTime IConvertible.ToDateTime(IFormatProvider provider) + { + throw new InvalidCastException(SR.Format(SR.InvalidCast_FromTo, "Int16", "DateTime")); + } + + Object IConvertible.ToType(Type type, IFormatProvider provider) + { + return Convert.DefaultToType((IConvertible)this, type, provider); + } + } +} |