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0026448: Method Prepend() of sequence breaks it if argument is empty sequence

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Check for empty input sequence added in methods Append() and Prepend() of TCollection and NCollection sequences.

Test bugs fclasses bug26448 added
This commit is contained in:
abv
2015-07-16 00:34:02 +03:00
parent adc33035ae
commit fac9298e2b
4 changed files with 35 additions and 0 deletions
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4
src/TCollection/TCollection_BaseSequence.cxx
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@@ -67,6 +67,8 @@ void TCollection_BaseSequence::PAppend(const Standard_Address newnode)
// ---------------------------------------------------
void TCollection_BaseSequence::PAppend(TCollection_BaseSequence& Other)
{
if (Other.Size == 0)
return;
if (Size == 0) {
Size = Other.Size;
FirstItem = Other.FirstItem;
@@ -104,6 +106,8 @@ void TCollection_BaseSequence::PPrepend(const Standard_Address newnode)
void TCollection_BaseSequence::PPrepend(TCollection_BaseSequence& Other)
{
if (Other.Size == 0)
return;
if (Size == 0) {
Size = Other.Size;
FirstItem = Other.FirstItem;