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Implement operator - for arrays. 

Fixes #5923
This commit is contained in:
Gunnar Beutner 2014-04-02 17:39:36 +02:00
parent 41d0dde52e
commit 5c72e52903
1 changed files with 29 additions and 1 deletions
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30
lib/base/value-operators.cpp
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@ -21,7 +21,9 @@
#include "base/array.h"
#include "base/logger_fwd.h"
#include "base/utility.h"
#include "base/objectlock.h"
#include <cJSON.h>
#include <boost/foreach.hpp>
#include <boost/lexical_cast.hpp>
using namespace icinga;
@ -244,7 +246,33 @@ Value icinga::operator-(const Value& lhs, const Value& rhs)
{
if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<double>(lhs) - static_cast<double>(rhs);
else
else if ((lhs.IsObjectType<Array>() || lhs.IsEmpty()) && (rhs.IsObjectType<Array>() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty())) {
if (lhs.IsEmpty())
return make_shared<Array>();
Array::Ptr result = make_shared<Array>();
Array::Ptr left = lhs;
Array::Ptr right = rhs;
ObjectLock olock(left);
BOOST_FOREACH(const Value& lv, left) {
bool found = false;
ObjectLock xlock(right);
BOOST_FOREACH(const Value& rv, right) {
if (lv == rv) {
found = true;
break;
}
}
if (found)
continue;
result->Add(lv);
}
return result;
} else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator - cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}