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add push/pop to optimization context for convenience

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-09-01 14:58:58 -07:00
parent 75c114feab
commit 31f16d7aa4
5 changed files with 77 additions and 2 deletions
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28
src/api/z3_api.h
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@ -6007,7 +6007,7 @@ END_MLAPI_EXCLUDE
/**
\brief Add a maximiztion constraint.
\brief Add a maximization constraint.
\param c - context
\param o - optimization context
\param a - arithmetical term
@ -6016,7 +6016,7 @@ END_MLAPI_EXCLUDE
unsigned Z3_API Z3_optimize_maximize(Z3_context, Z3_optimize o, Z3_ast t);
/**
\brief Add a minimiztion constraint.
\brief Add a minimization constraint.
\param c - context
\param o - optimization context
\param a - arithmetical term
@ -6025,6 +6025,30 @@ END_MLAPI_EXCLUDE
*/
unsigned Z3_API Z3_optimize_minimize(Z3_context, Z3_optimize o, Z3_ast t);
/**
\brief Create a backtracking point.
The optimize solver contains a set of rules, added facts and assertions.
The set of rules, facts and assertions are restored upon calling #Z3_optimize_pop.
\sa Z3_optimize_pop
def_API('Z3_optimize_push', VOID, (_in(CONTEXT), _in(OPTIMIZE)))
*/
void Z3_API Z3_optimize_push(Z3_context c,Z3_optimize d);
/**
\brief Backtrack one level.
\sa Z3_optimize_push
\pre The number of calls to pop cannot exceed calls to push.
def_API('Z3_optimize_pop', VOID, (_in(CONTEXT), _in(OPTIMIZE)))
*/
void Z3_API Z3_optimize_pop(Z3_context c,Z3_optimize d);
/**
\brief Check consistency and produce optimal values.
\param c - context