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devhawk/base54length.cs

Created June 15, 2022 20:22
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base54length.cs
static int GetLength(ReadOnlyMemory<char> base64)
{
if (base64.IsEmpty) return 0;
var characterCount = base64.Length;
var paddingCount = 0;
if (base64.Span[characterCount - 1] == '=') paddingCount++;
if (base64.Span[characterCount - 2] == '=') paddingCount++;
return (3 * (characterCount / 4)) - paddingCount;
}
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