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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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49
Task/Integer-overflow/C-sharp/integer-overflow.cs Normal file
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using System;
public class IntegerOverflow
{
public static void Main() {
unchecked {
Console.WriteLine("For 32-bit signed integers:");
Console.WriteLine(-(-2147483647 - 1));
Console.WriteLine(2000000000 + 2000000000);
Console.WriteLine(-2147483647 - 2147483647);
Console.WriteLine(46341 * 46341);
Console.WriteLine((-2147483647 - 1) / -1);
Console.WriteLine();
Console.WriteLine("For 64-bit signed integers:");
Console.WriteLine(-(-9223372036854775807L - 1));
Console.WriteLine(5000000000000000000L + 5000000000000000000L);
Console.WriteLine(-9223372036854775807L - 9223372036854775807L);
Console.WriteLine(3037000500L * 3037000500L);
Console.WriteLine((-9223372036854775807L - 1) / -1);
Console.WriteLine();
Console.WriteLine("For 32-bit unsigned integers:");
//Negating a 32-bit unsigned integer will convert it to a signed 64-bit integer.
Console.WriteLine(-4294967295U);
Console.WriteLine(3000000000U + 3000000000U);
Console.WriteLine(2147483647U - 4294967295U);
Console.WriteLine(65537U * 65537U);
Console.WriteLine();
Console.WriteLine("For 64-bit unsigned integers:");
// The - operator cannot be applied to 64-bit unsigned integers; it will always give a compile-time error.
//Console.WriteLine(-18446744073709551615UL);
Console.WriteLine(10000000000000000000UL + 10000000000000000000UL);
Console.WriteLine(9223372036854775807UL - 18446744073709551615UL);
Console.WriteLine(4294967296UL * 4294967296UL);
Console.WriteLine();
}
int i = 2147483647;
Console.WriteLine(i + 1);
try {
checked { Console.WriteLine(i + 1); }
} catch (OverflowException) {
Console.WriteLine("Overflow!");
}
}
}