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mealy: work around spurious nullptr warning

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* spot/twaalgos/mealy_machine.cc (mm_sat_prob_t<true>::get_sol): Call
SPOT_ASSUME to hint that res.data() is not null.
This commit is contained in:
Alexandre Duret-Lutz 2021-08-02 09:28:14 +02:00
parent 3614cf34a8
commit c58e6f22ac
1 changed files with 7 additions and 6 deletions
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13
spot/twaalgos/mealy_machine.cc
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@ -2071,25 +2071,26 @@ namespace
get_sol()
{
// Returns a vector of assignments
// The vector is empty iff the the prob is unsat
// The vector is empty iff the prob is unsat
// res[i] == -1 : i not used in lit mapper
// res[i] == 0 : i is assigned false
// res[i] == 1 : i is assigned true
switch (picosat_sat(lm.psat_, -1))
{
case(PICOSAT_UNSATISFIABLE):
case PICOSAT_UNSATISFIABLE:
return {};
case(PICOSAT_SATISFIABLE):
case PICOSAT_SATISFIABLE:
{
std::vector<int>
res(1 + (unsigned) picosat_variables(lm.psat_), -1);
SPOT_ASSUME(res.data()); // g++ 11 believes data might be nullptr
res[0] = 0; // Convention
for (int lit : lm.all_lits)
res.at(lit) = picosat_deref(lm.psat_, lit);
res[lit] = picosat_deref(lm.psat_, lit);
#ifdef TRACE
trace << "Sol is \n";
trace << "Sol is\n";
for (unsigned i = 0; i < res.size(); ++i)
std::cerr << i << " : " << res.at(i) << '\n';
trace << i << ": " << res[i] << '\n';
#endif
return res;
}