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#include "safemult.h"
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int imult64(int64 a,int64 b,int64* c) {
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int neg=(a<0);
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uint64 d;
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if (neg) a=-a;
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if (b<0) { neg^=1; b=-b; }
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if (umult64(a,b,&d)) return 0;
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*c=(neg?-d:d);
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return 1;
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}
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