bool Rank1Constraint::isSatisfied(const VariableAssignment& assignment,
const PrintOptions& printOnFail) const {
const FElem ares = a_.eval(assignment);
const FElem bres = b_.eval(assignment);
const FElem cres = c_.eval(assignment);
if (ares*bres != cres) {
# ifdef DEBUG
if (printOnFail == PrintOptions::DBG_PRINT_IF_NOT_SATISFIED) {
cerr << GADGETLIB2_FMT("Constraint named \"%s\" not satisfied. Constraint is:",
name().c_str()) << endl;
cerr << annotation() << endl;
cerr << "Variable assignments are:" << endl;
const Variable::set varSet = getUsedVariables();
for(const Variable& var : varSet) {
cerr << var.name() << ": " << assignment.at(var).asString() << endl;
}
cerr << "a: " << ares.asString() << endl;
cerr << "b: " << bres.asString() << endl;
cerr << "a*b: " << (ares*bres).asString() << endl;
cerr << "c: " << cres.asString() << endl;
}
# endif
return false;
}
return true;
}
FElem Variable::eval(const VariableAssignment& assignment) const {
try {
return assignment.at(*this);
} catch (::std::out_of_range) {
GADGETLIB_FATAL(GADGETLIB2_FMT("Attempted to evaluate unassigned Variable \"%s\", idx:%lu", name().c_str(),
index_));
}
}
bool PolynomialConstraint::isSatisfied(const VariableAssignment& assignment,
const PrintOptions& printOnFail) const {
const FElem aEval = a_.eval(assignment);
const FElem bEval = b_.eval(assignment);
if (aEval != bEval) {
# ifdef DEBUG
if(printOnFail == PrintOptions::DBG_PRINT_IF_NOT_SATISFIED) {
cerr << GADGETLIB2_FMT("Constraint named \"%s\" not satisfied. Constraint is:",
name().c_str()) << endl;
cerr << annotation() << endl;
cerr << "Expecting: " << aEval << " == " << bEval << endl;
cerr << "Variable assignments are:" << endl;
const Variable::set varSet = getUsedVariables();
for(const Variable& var : varSet) {
cerr << var.name() << ": " << assignment.at(var).asString() << endl;
}
}
# endif
return false;
}
return true;
}
::std::string LinearTerm::asString() const {
if (coeff_ == 1) { return variable_.name();}
else if (coeff_ == -1) {return GADGETLIB2_FMT("-1 * %s", variable_.name().c_str());}
else if (coeff_ == 0) {return GADGETLIB2_FMT("0 * %s", variable_.name().c_str());}
else {return GADGETLIB2_FMT("%s * %s", coeff_.asString().c_str(), variable_.name().c_str());}
}
VariableArray::VariableArray(const size_t size, const ::std::string& name) : VariableArrayContents() {
for (size_t i = 0; i < size; ++i) {
push_back(Variable(GADGETLIB2_FMT("%s[%d]", name.c_str(), i)));
}
}
Variable::Variable(const string& name) : index_(nextFreeIndex_++) {
libff::UNUSED(name);
GADGETLIB_ASSERT(nextFreeIndex_ > 0, GADGETLIB2_FMT("Variable index overflow has occured, maximum number of "
"Variables is %lu", ULONG_MAX));
}
