/*++
Copyright (c) 2012 Microsoft Corporation

Module Name:

    Version.cs

Abstract:

    Z3 Managed API: Version information

Author:

    Christoph Wintersteiger (cwinter) 2012-03-16

Notes:
    
--*/

using System;
using System.Diagnostics.Contracts;

namespace Microsoft.Z3
{
  /// <summary>
  /// Version information.
  /// </summary>
  /// <remarks>Note that this class is static.</remarks>
    [ContractVerification(true)]
    public static class Version
  {
    static Version() { }

    /// <summary>
    /// The major version
    /// </summary>
    public static uint Major
    {
      get
      {
        uint major = 0, minor = 0, build = 0, revision = 0;
        Native.Z3_get_version(ref major, ref minor, ref build, ref revision);
        return major;
      }
    }

    /// <summary>
    /// The minor version
    /// </summary>
    public static uint Minor
    {
      get
      {
        uint major = 0, minor = 0, build = 0, revision = 0;
        Native.Z3_get_version(ref major, ref minor, ref build, ref revision);
        return minor;
      }
    }

    /// <summary>
    /// The build version
    /// </summary>
    public static uint Build
    {
      get
      {
        uint major = 0, minor = 0, build = 0, revision = 0;
        Native.Z3_get_version(ref major, ref minor, ref build, ref revision);
        return build;
      }
    }

    /// <summary>
    /// The revision
    /// </summary>
    public static uint Revision
    {
      get
      {
        uint major = 0, minor = 0, build = 0, revision = 0;
        Native.Z3_get_version(ref major, ref minor, ref build, ref revision);
        return revision;
      }
    }

    /// <summary>
    /// A string representation of the version information.
    /// </summary>
    new public static string ToString()
    {
        Contract.Ensures(Contract.Result<string>() != null);

      uint major = 0, minor = 0, build = 0, revision = 0;
      Native.Z3_get_version(ref major, ref minor, ref build, ref revision);
      return major.ToString() + "." + minor.ToString() + "." + build.ToString() + "." + revision.ToString();
    }
  }
}