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Workaround bug in boost.

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This commit is contained in:
Gav Wood 2015-09-13 17:49:26 +02:00
parent 129b4142d8
commit 724ef6757d
1 changed files with 14 additions and 4 deletions
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18
ExpressionClasses.cpp
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@ -183,6 +183,16 @@ private:
vector<pair<Pattern, function<Pattern()>>> m_rules;
};
template <class S> S divWorkaround(S const& _a, S const& _b)
{
return (S)(bigint(_a) / bigint(_b));
}
template <class S> S modWorkaround(S const& _a, S const& _b)
{
return (S)(bigint(_a) % bigint(_b));
}
Rules::Rules()
{
// Multiple occurences of one of these inside one rule must match the same equivalence class.
@ -206,10 +216,10 @@ Rules::Rules()
{{Instruction::ADD, {A, B}}, [=]{ return A.d() + B.d(); }},
{{Instruction::MUL, {A, B}}, [=]{ return A.d() * B.d(); }},
{{Instruction::SUB, {A, B}}, [=]{ return A.d() - B.d(); }},
{{Instruction::DIV, {A, B}}, [=]{ return B.d() == 0 ? 0 : A.d() / B.d(); }},
{{Instruction::SDIV, {A, B}}, [=]{ return B.d() == 0 ? 0 : s2u(u2s(A.d()) / u2s(B.d())); }},
{{Instruction::MOD, {A, B}}, [=]{ return B.d() == 0 ? 0 : A.d() % B.d(); }},
{{Instruction::SMOD, {A, B}}, [=]{ return B.d() == 0 ? 0 : s2u(u2s(A.d()) % u2s(B.d())); }},
{{Instruction::DIV, {A, B}}, [=]{ return B.d() == 0 ? 0 : divWorkaround(A.d(), B.d()); }},
{{Instruction::SDIV, {A, B}}, [=]{ return B.d() == 0 ? 0 : s2u(divWorkaround(u2s(A.d()), u2s(B.d()))); }},
{{Instruction::MOD, {A, B}}, [=]{ return B.d() == 0 ? 0 : modWorkaround(A.d(), B.d()); }},
{{Instruction::SMOD, {A, B}}, [=]{ return B.d() == 0 ? 0 : s2u(modWorkaround(u2s(A.d()), u2s(B.d()))); }},
{{Instruction::EXP, {A, B}}, [=]{ return u256(boost::multiprecision::powm(bigint(A.d()), bigint(B.d()), bigint(1) << 256)); }},
{{Instruction::NOT, {A}}, [=]{ return ~A.d(); }},
{{Instruction::LT, {A, B}}, [=]() { return A.d() < B.d() ? u256(1) : 0; }},