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Replace custom util/optional with std::optional (#8162)

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* Initial plan

* Replace optional with std::optional in source files

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* Fix array_map contains() and remove optional_benchmark test

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* Address code review feedback - simplify array_map and test

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
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Copilot 2026-01-11 19:47:39 -08:00 • committed by GitHub
parent 40250bfcb8
commit 4d188f07e9
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15 changed files with 34 additions and 592 deletions
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src/math/simplex/network_flow_def.h
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@ -237,7 +237,7 @@ namespace smt {
bool network_flow<Ext>::choose_leaving_edge() {
node src = m_graph.get_source(m_enter_id);
node tgt = m_graph.get_target(m_enter_id);
m_delta.set_invalid();
m_delta.reset();
edge_id leave_id = null_edge_id;
svector<edge_id> path;
bool_vector against;