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Ingy döt Net 2015-02-20 09:02:09 -05:00
parent 00a190b0a6
commit 91df62d461
5697 changed files with 93386 additions and 804 deletions
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28
Task/Integer-overflow/C/integer-overflow.c Normal file
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#include <stdio.h>
int main (int argc, char *argv[])
{
printf("Signed 32-bit:\n");
printf("%d\n", -(-2147483647-1));
printf("%d\n", 2000000000 + 2000000000);
printf("%d\n", -2147483647 - 2147483647);
printf("%d\n", 46341 * 46341);
printf("%d\n", (-2147483647-1) / -1);
printf("Signed 64-bit:\n");
printf("%ld\n", -(-9223372036854775807-1));
printf("%ld\n", 5000000000000000000+5000000000000000000);
printf("%ld\n", -9223372036854775807 - 9223372036854775807);
printf("%ld\n", 3037000500 * 3037000500);
printf("%ld\n", (-9223372036854775807-1) / -1);
printf("Unsigned 32-bit:\n");
printf("%u\n", -4294967295U);
printf("%u\n", 3000000000U + 3000000000U);
printf("%u\n", 2147483647U - 4294967295U);
printf("%u\n", 65537U * 65537U);
printf("Unsigned 64-bit:\n");
printf("%lu\n", -18446744073709551615LU);
printf("%lu\n", 10000000000000000000LU + 10000000000000000000LU);
printf("%lu\n", 9223372036854775807LU - 18446744073709551615LU);
printf("%lu\n", 4294967296LU * 4294967296LU);
return 0;
}