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Fix range "arithmetic"

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Subtracting anything from an empty range should return an empty range, not an assert() failure

Conflicts:
	libs/evoral/evoral/Range.hpp
This commit is contained in:
Paul Davis 2014-12-31 07:43:43 -05:00
parent a92370e07f
commit cd61673238
1 changed files with 2 additions and 1 deletions
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3
libs/evoral/evoral/Range.hpp
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@ -113,6 +113,7 @@ struct /*LIBEVORAL_API*/ Range {
Range (T f, T t) : from (f), to (t) {}
T from; ///< start of the range
T to; ///< end of the range
bool empty() const { return from == to; }
};
template<typename T>
@ -191,7 +192,7 @@ RangeList<T> subtract (Range<T> range, RangeList<T> sub)
RangeList<T> result;
result.add (range);
if (sub.empty ()) {
if (sub.empty () || range.empty()) {
return result;
}