60 lines
780 B
C
60 lines
780 B
C
int errflag;
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long long
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f (long long x, long long y)
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{
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long long r;
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errflag = 0;
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r = x + y;
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if (x >= 0)
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{
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if ((y < 0) || (r >= 0))
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return r;
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}
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else
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{
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if ((y > 0) || (r < 0))
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return r;
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}
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errflag = 1;
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return 0;
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}
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main ()
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{
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f (0, 0);
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if (errflag)
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abort ();
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f (1, -1);
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if (errflag)
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abort ();
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f (-1, 1);
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if (errflag)
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abort ();
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f (0x8000000000000000LL, 0x8000000000000000LL);
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if (!errflag)
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abort ();
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f (0x8000000000000000LL, -1LL);
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if (!errflag)
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abort ();
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f (0x7fffffffffffffffLL, 0x7fffffffffffffffLL);
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if (!errflag)
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abort ();
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f (0x7fffffffffffffffLL, 1LL);
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if (!errflag)
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abort ();
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f (0x7fffffffffffffffLL, 0x8000000000000000LL);
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if (errflag)
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abort ();
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exit (0);
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}
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