📄 961122-1.c
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long long acc;addhi (short a){ acc += (long long) a << 32;}subhi (short a){ acc -= (long long) a << 32;}main (){ acc = 0xffff00000000ll; addhi (1); if (acc != 0x1000000000000ll) abort (); subhi (1); if (acc != 0xffff00000000ll) abort (); exit (0);}
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