namespace System { public struct Int64 : IComparable, IComparable<long>, IConvertible, IEquatable<long>, IFormattable { public const long MaxValue = 9223372036854775807; public const long MinValue = -9223372036854775808; public int CompareTo(long value); public int CompareTo(object value); public bool Equals(long obj); public TypeCode GetTypeCode(); public static long Parse(string s); public static long Parse(string s, NumberStyles style); public static long Parse(string s, NumberStyles style, IFormatProvider provider); public static long Parse(string s, IFormatProvider provider); public string ToString(IFormatProvider provider); public string ToString(string format); public string ToString(string format, IFormatProvider provider); public static bool TryParse(string s, NumberStyles style, IFormatProvider provider, out long result); public static bool TryParse(string s, out long result); } }