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Fix unsigned absolute value #242

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Merged
mohabsafey merged 1 commit into from
Nov 25, 2025
+3 −1
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Fix unsigned absolute value #242

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4 changes: 3 additions & 1 deletion src/msolve/msolve.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3137,7 +3137,9 @@ static int evaluate_coordinate(mpz_param_t param, interval *rt, real_point_t pt,
mpz_neg(val_up, val_up);
mpz_swap(val_up, val_do);

long alpha = abs(mpz_sizeinbase(den_do, 2) + mpz_sizeinbase(param->cfs[pos], 2) - mpz_sizeinbase(val_do, 2)) / prec;
size_t sz = mpz_sizeinbase(den_do, 2) + mpz_sizeinbase(param->cfs[pos], 2)
- mpz_sizeinbase(val_do, 2);
long alpha = labs((long) sz) / prec;
long dec = MAX(2,2*alpha) * prec;

mpz_mul_2exp(val_up, val_up, dec);
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