BigInteger parsing optimizations (#47842)

* Optimize BigInteger parsing * Use ArrayPool<int> instead of ArrayPool<uint>. * Additional changes * Additional changes
dotnet · May 9, 2021 · b3278ca · b3278ca
1 parent 3297e7e
commit b3278ca
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Showing 2 changed files with 279 additions and 70 deletions.
diff --git a/src/libraries/System.Runtime.Numerics/src/System/Numerics/BigInteger.cs b/src/libraries/System.Runtime.Numerics/src/System/Numerics/BigInteger.cs
@@ -464,7 +464,7 @@ public BigInteger(ReadOnlySpan<byte> value, bool isUnsigned = false, bool isBigE
             AssertValid();
         }
 
-        private BigInteger(int n, uint[]? rgu)
+        internal BigInteger(int n, uint[]? rgu)
         {
             _sign = n;
             _bits = rgu;
@@ -703,7 +703,7 @@ public static BigInteger Parse(ReadOnlySpan<char> value, NumberStyles style = Nu
 
         public static bool TryParse(ReadOnlySpan<char> value, out BigInteger result)
         {
-            return BigNumber.TryParseBigInteger(value, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result);
+            return TryParse(value, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result);
         }
 
         public static bool TryParse(ReadOnlySpan<char> value, NumberStyles style, IFormatProvider? provider, out BigInteger result)