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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/NCollection/NCollection_BaseSequence.cxx
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@ -68,6 +68,8 @@ void NCollection_BaseSequence::PAppend (NCollection_SeqNode * theItem)
void NCollection_BaseSequence::PAppend(NCollection_BaseSequence& Other)
{
if (Other.mySize == 0)
return;
if (mySize == 0) {
mySize = Other.mySize;
myFirstItem = Other.myFirstItem;
@ -113,6 +115,8 @@ void NCollection_BaseSequence::PPrepend (NCollection_SeqNode * theItem)
void NCollection_BaseSequence::PPrepend (NCollection_BaseSequence& Other)
{
if (Other.mySize == 0)
return;
if (mySize == 0) {
mySize = Other.mySize;
myFirstItem = Other.myFirstItem;

17
src/QABugs/QABugs_19.cxx
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@ -3663,6 +3663,22 @@ static Standard_Integer OCC24923(
return 0;
}
static Standard_Integer OCC26448 (Draw_Interpretor& theDI, Standard_Integer, const char **)
{
TColStd_SequenceOfReal aSeq1, aSeq2;
aSeq1.Append(11.);
aSeq1.Prepend (aSeq2);
theDI << "TCollection: 11 -> " << aSeq1.First() << "\n";
NCollection_Sequence<Standard_Real> nSeq1, nSeq2;
nSeq1.Append(11.);
nSeq1.Prepend (nSeq2);
theDI << "NCollection: 11 -> " << nSeq1.First() << "\n";
theDI << "OK";
return 0;
}
void QABugs::Commands_19(Draw_Interpretor& theCommands) {
const char *group = "QABugs";
@ -3734,5 +3750,6 @@ void QABugs::Commands_19(Draw_Interpretor& theCommands) {
theCommands.Add ("OCC24923", "OCC24923", __FILE__, OCC24923, group);
theCommands.Add ("OCC26139", "OCC26139 [-boxsize value] [-boxgrid value] [-compgrid value]", __FILE__, OCC26139, group);
theCommands.Add ("OCC26284", "OCC26284", __FILE__, OCC26284, group);
theCommands.Add ("OCC26448", "OCC26448: check method Prepend() of sequence", __FILE__, OCC26448, group);
return;
}

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;

10
tests/bugs/fclasses/bug26448 Normal file
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@ -0,0 +1,10 @@
puts "============"
puts "OCC26448"
puts "============"
puts ""
#######################################################################
# Method Prepend() of sequence breaks it if argument is empty sequence
#######################################################################
pload QAcommands
OCC26448