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Added singularity check method as virtual in VSA #830

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Merged
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Apr 19, 2017
Merged

Added singularity check method as virtual in VSA #830

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21 changes: 21 additions & 0 deletions src/pointer-analysis/value_set_analysis.h
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ Author: Daniel Kroening, [email protected]
#include <analyses/static_analysis.h>
#include <util/xml_expr.h>
#include <util/xml.h>
#include <util/expr_util.h>

#include "value_set_domain.h"
#include "value_sets.h"
Expand Down Expand Up @@ -108,6 +109,26 @@ class value_set_analysis_baset:
dest,
baset::ns);
}

/*******************************************************************\

Function: value_set_analysis_baset::is_singular

Inputs: The set of expressions to check.

Outputs: true, if it contains only one expression and
that expression is a symbol,
false, otherwise.

Purpose: Get whether a set of expressions can have a strong update
or not.

\*******************************************************************/

virtual bool is_singular(const std::set<exprt> &values)
{
return values.size()==1 && values.begin()->id()==ID_symbol;
}
};

typedef value_set_analysis_baset<value_sett> value_set_analysist;
Expand Down