| #include <limits.h> |
| |
| extern void abort (); |
| |
| int test1(int x) |
| { |
| return (x ^ INT_MIN) ^ 0x1234; |
| } |
| |
| unsigned int test1u(unsigned int x) |
| { |
| return (x ^ (unsigned int)INT_MIN) ^ 0x1234; |
| } |
| |
| int test2(int x) |
| { |
| return (x ^ 0x1234) ^ INT_MIN; |
| } |
| |
| unsigned int test2u(unsigned int x) |
| { |
| return (x ^ 0x1234) ^ (unsigned int)INT_MIN; |
| } |
| |
| unsigned int test3u(unsigned int x) |
| { |
| return (x + (unsigned int)INT_MIN) ^ 0x1234; |
| } |
| |
| unsigned int test4u(unsigned int x) |
| { |
| return (x ^ 0x1234) + (unsigned int)INT_MIN; |
| } |
| |
| unsigned int test5u(unsigned int x) |
| { |
| return (x - (unsigned int)INT_MIN) ^ 0x1234; |
| } |
| |
| unsigned int test6u(unsigned int x) |
| { |
| return (x ^ 0x1234) - (unsigned int)INT_MIN; |
| } |
| |
| int test7(int x) |
| { |
| int y = INT_MIN; |
| int z = 0x1234; |
| return (x ^ y) ^ z; |
| } |
| |
| unsigned int test7u(unsigned int x) |
| { |
| unsigned int y = (unsigned int)INT_MIN; |
| unsigned int z = 0x1234; |
| return (x ^ y) ^ z; |
| } |
| |
| int test8(int x) |
| { |
| int y = 0x1234; |
| int z = INT_MIN; |
| return (x ^ y) ^ z; |
| } |
| |
| unsigned int test8u(unsigned int x) |
| { |
| unsigned int y = 0x1234; |
| unsigned int z = (unsigned int)INT_MIN; |
| return (x ^ y) ^ z; |
| } |
| |
| unsigned int test9u(unsigned int x) |
| { |
| unsigned int y = (unsigned int)INT_MIN; |
| unsigned int z = 0x1234; |
| return (x + y) ^ z; |
| } |
| |
| unsigned int test10u(unsigned int x) |
| { |
| unsigned int y = 0x1234; |
| unsigned int z = (unsigned int)INT_MIN; |
| return (x ^ y) + z; |
| } |
| |
| unsigned int test11u(unsigned int x) |
| { |
| unsigned int y = (unsigned int)INT_MIN; |
| unsigned int z = 0x1234; |
| return (x - y) ^ z; |
| } |
| |
| unsigned int test12u(unsigned int x) |
| { |
| unsigned int y = 0x1234; |
| unsigned int z = (unsigned int)INT_MIN; |
| return (x ^ y) - z; |
| } |
| |
| |
| void test(int a, int b) |
| { |
| if (test1(a) != b) |
| abort(); |
| if (test2(a) != b) |
| abort(); |
| if (test7(a) != b) |
| abort(); |
| if (test8(a) != b) |
| abort(); |
| } |
| |
| void testu(unsigned int a, unsigned int b) |
| { |
| if (test1u(a) != b) |
| abort(); |
| if (test2u(a) != b) |
| abort(); |
| if (test3u(a) != b) |
| abort(); |
| if (test4u(a) != b) |
| abort(); |
| if (test5u(a) != b) |
| abort(); |
| if (test6u(a) != b) |
| abort(); |
| if (test7u(a) != b) |
| abort(); |
| if (test8u(a) != b) |
| abort(); |
| if (test9u(a) != b) |
| abort(); |
| if (test10u(a) != b) |
| abort(); |
| if (test11u(a) != b) |
| abort(); |
| if (test12u(a) != b) |
| abort(); |
| } |
| |
| |
| int main() |
| { |
| #if INT_MAX == 2147483647 |
| test(0x00000000,0x80001234); |
| test(0x00001234,0x80000000); |
| test(0x80000000,0x00001234); |
| test(0x80001234,0x00000000); |
| test(0x7fffffff,0xffffedcb); |
| test(0xffffffff,0x7fffedcb); |
| |
| testu(0x00000000,0x80001234); |
| testu(0x00001234,0x80000000); |
| testu(0x80000000,0x00001234); |
| testu(0x80001234,0x00000000); |
| testu(0x7fffffff,0xffffedcb); |
| testu(0xffffffff,0x7fffedcb); |
| #endif |
| |
| #if INT_MAX == 32767 |
| test(0x0000,0x9234); |
| test(0x1234,0x8000); |
| test(0x8000,0x1234); |
| test(0x9234,0x0000); |
| test(0x7fff,0xedcb); |
| test(0xffff,0x6dcb); |
| |
| testu(0x0000,0x9234); |
| testu(0x8000,0x1234); |
| testu(0x1234,0x8000); |
| testu(0x9234,0x0000); |
| testu(0x7fff,0xedcb); |
| testu(0xffff,0x6dcb); |
| #endif |
| |
| return 0; |
| } |
| |