{"action":"created","comment":{"url":"https://api.github.com/repos/dotnet/corefx/pulls/comments/129895996","pull_request_review_id":52717059,"id":129895996,"diff_hunk":"@@ -325,6 +325,18 @@ internal static bool TryValidateParseStyleInteger(NumberStyles style, out Argume\n         [SecuritySafeCritical]\n         internal static bool TryParseBigInteger(string value, NumberStyles style, NumberFormatInfo info, out BigInteger result)\n         {\n+            if (value == null)\n+            {\n+                result = default(BigInteger);\n+                return false;\n+            }\n+\n+            return TryParseBigInteger(AsReadOnlySpan(value), style, info, out result);\n+        }\n+\n+        [SecuritySafeCritical]","path":"src/System.Runtime.Numerics/src/System/Numerics/BigNumber.cs","position":13,"original_position":13,"commit_id":"31c23e6a6b1b925a8aa974ea68f19497314e1be9","original_commit_id":"31c23e6a6b1b925a8aa974ea68f19497314e1be9","user":{"login":"stephentoub","id":2642209,"avatar_url":"https://avatars0.githubusercontent.com/u/2642209?v=4","gravatar_id":"","url":"https://api.github.com/users/stephentoub","html_url":"https://github.com/stephentoub","followers_url":"https://api.github.com/users/stephentoub/followers","following_url":"https://api.github.com/users/stephentoub/following{/other_user}","gists_url":"https://api.github.com/users/stephentoub/gists{/gist_id}","starred_url":"https://api.github.com/users/stephentoub/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/stephentoub/subscriptions","organizations_url":"https://api.github.com/users/stephentoub/orgs","repos_url":"https://api.github.com/users/stephentoub/repos","events_url":"https://api.github.com/users/stephentoub/events{/privacy}","received_events_url":"https://api.github.com/users/stephentoub/received_events","type":"User","site_admin":false},"body":"Simply because it was on the other overload.  I figure either a) we've not yet cleaned these out and so it can be removed when the rest are, or b) someone left it on purpose and so I should have it here as well.","created_at":"2017-07-27T16:48:30Z","updated_at":"2017-07-27T16:48:30Z","html_url":"https://github.com/dotnet/corefx/pull/22689#discussion_r129895996","pull_request_url":"https://api.github.com/repos/dotnet/corefx/pulls/22689","_links":{"self":{"href":"https://api.github.com/repos/dotnet/corefx/pulls/comments/129895996"},"html":{"href":"https://github.com/dotnet/corefx/pull/22689#discussion_r129895996"},"pull_request":{"href":"https://api.github.com/repos/dotnet/corefx/pulls/22689"}}},"pull_request":{"url":"https://api.github.com/repos/dotnet/corefx/pulls/22689","id":132783936,"html_url":"https://github.com/dotnet/corefx/pull/22689","diff_url":"https://github.com/dotnet/corefx/pull/22689.diff","patch_url":"https://github.com/dotnet/corefx/pull/22689.patch","issue_url":"https://api.github.com/repos/dotnet/corefx/issues/22689","number":22689,"state":"open","locked":false,"title":"Add Span-based APIs to 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value);\r\npublic int GetByteCount();\r\npublic static BigInteger Parse(ReadOnlySpan<char> value, NumberStyles style, IFormatProvider provider);\r\npublic static bool TryParse(ReadOnlySpan<char> value, out BigInteger result, NumberStyles style, IFormatProvider provider);\r\npublic bool TryWriteBytes(Span<byte> destination, out int bytesWritten);\r\n```\r\n\r\nRather than duplicate a lot of logic, existing code paths were changed to use {ReadOnly}Span, with string and array-based overloads targeting them as well.\r\n\r\ncc: @axelheer, @mellinoe, @bartonjs \r\nFixes 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