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https://github.com/Z3Prover/z3
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parent
4bfe20647b
commit
690eb8eaca
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@ -2952,11 +2952,16 @@ void fpa2bv_converter::mk_is_pzero(expr * e, expr_ref & result) {
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}
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void fpa2bv_converter::mk_is_denormal(expr * e, expr_ref & result) {
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expr * sgn, * sig, * exp;
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expr * sgn, *sig, *exp;
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split_fp(e, sgn, exp, sig);
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expr_ref zero(m);
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expr_ref zero(m), zexp(m), is_zero(m), n_is_zero(m);
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zero = m_bv_util.mk_numeral(0, m_bv_util.get_bv_size(exp));
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m_simp.mk_eq(exp, zero, result);
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m_simp.mk_eq(exp, zero, zexp);
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mk_is_zero(e, is_zero);
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m_simp.mk_not(is_zero, n_is_zero);
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m_simp.mk_and(n_is_zero, zexp, result);
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}
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void fpa2bv_converter::mk_is_normal(expr * e, expr_ref & result) {
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@ -1350,7 +1350,7 @@ bool mpf_manager::is_ninf(mpf const & x) {
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}
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bool mpf_manager::is_normal(mpf const & x) {
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return !has_bot_exp(x) && !has_top_exp(x);
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return !is_zero(x) && has_bot_exp(x);
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}
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bool mpf_manager::is_denormal(mpf const & x) {
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