14 lines
613 B
C#
14 lines
613 B
C#
string s = "12345";
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s = (int.Parse(s) + 1).ToString();
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// The above functions properly for strings >= Int32.MinValue and
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// < Int32.MaxValue. ( -2147483648 to 2147483646 )
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// The following will work for any arbitrary-length integer string.
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// (Assuming that the string fits in memory, leaving enough space
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// for the temporary BigInteger created, plus the resulting string):
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using System.Numerics;
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string bis = "123456789012345678999999999";
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bis = (BigInteger.Parse(bis) + 1).ToString();
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// Note that extremely long strings will take a long time to parse
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// and convert from a BigInteger back into a string.
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