ReadOnlySpanCharExtensions.cs

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using System;
 
namespace IKVM.Runtime.Extensions
{
 
    static class ReadOnlySpanCharExtensions
    {
 
        public static int GetHashCodeExtension(this ReadOnlySpan<char> span)
        {
#if NETFRAMEWORK
            return span.ToString().GetHashCode();
#else
            return string.GetHashCode(span);
#endif
        }
 
        public static bool OnlyNumbers(this ReadOnlySpan<char> span)
        {
            foreach (var c in span)
                if (char.IsNumber(c) == false)
                    return false;
 
            return true;
        }
 
    }
 
}