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Make skip_typecast widely available #2508

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Merged
merged 1 commit into from
Jul 3, 2018
Merged

Make skip_typecast widely available #2508

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15 changes: 4 additions & 11 deletions src/goto-instrument/goto_program2code.cpp
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Expand Up @@ -13,22 +13,15 @@ Author: Daniel Kroening, [email protected]

#include <sstream>

#include <util/c_types.h>
#include <util/arith_tools.h>
#include <util/config.h>
#include <util/c_types.h>
#include <util/expr_util.h>
#include <util/find_symbols.h>
#include <util/prefix.h>
#include <util/simplify_expr.h>
#include <util/find_symbols.h>
#include <util/arith_tools.h>
#include <util/type_eq.h>

static const exprt &skip_typecast(const exprt &expr)
{
if(expr.id()!=ID_typecast)
return expr;

return skip_typecast(to_typecast_expr(expr).op());
}

void goto_program2codet::operator()()
{
// labels stored for cleanup
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8 changes: 8 additions & 0 deletions src/util/expr_util.cpp
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Expand Up @@ -201,3 +201,11 @@ if_exprt lift_if(const exprt &src, std::size_t operand_number)

return result;
}

const exprt &skip_typecast(const exprt &expr)
{
if(expr.id()!=ID_typecast)
return expr;

return skip_typecast(to_typecast_expr(expr).op());
}
3 changes: 3 additions & 0 deletions src/util/expr_util.h
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Expand Up @@ -72,4 +72,7 @@ bool has_subtype(const typet &, const irep_idt &id, const namespacet &);
/// lift up an if_exprt one level
if_exprt lift_if(const exprt &, std::size_t operand_number);

/// find the expression nested inside typecasts, if any
const exprt &skip_typecast(const exprt &expr);

#endif // CPROVER_UTIL_EXPR_UTIL_H