generic-library/ebml
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v1/v2: add support for reverse iterators

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git-svn-id: https://matroska.svn.sourceforge.net/svnroot/matroska/trunk/libebml@133 a6f86f6d-0131-4f8e-9e7b-e335508773d5
This commit is contained in:
Steve Lhomme 2010-04-19 08:40:10 +00:00
parent ab093ddf20
commit 4eef9565c1
2 changed files with 17 additions and 6 deletions
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4
ebml/EbmlMaster.h
View File

@ -44,6 +44,7 @@
#include "EbmlCrc32.h"
#define EBML_MASTER_ITERATOR std::vector<EbmlElement *>::const_iterator
#define EBML_MASTER_RITERATOR std::vector<EbmlElement *>::const_reverse_iterator
START_LIBEBML_NAMESPACE
@ -121,6 +122,8 @@ class EBML_DLL_API EbmlMaster : public EbmlElement {
inline EBML_MASTER_ITERATOR begin() const {return ElementList.begin();}
inline EBML_MASTER_ITERATOR end() const {return ElementList.end();}
inline EBML_MASTER_RITERATOR rbegin() const {return ElementList.rbegin();}
inline EBML_MASTER_RITERATOR rend() const {return ElementList.rend();}
EbmlElement * operator[](unsigned int position) {return ElementList[position];}
const EbmlElement * operator[](unsigned int position) const {return ElementList[position];}
@ -141,6 +144,7 @@ class EBML_DLL_API EbmlMaster : public EbmlElement {
*/
void Remove(size_t Index);
void Remove(const EBML_MASTER_ITERATOR & Itr);
void Remove(const EBML_MASTER_RITERATOR & Itr);
/*!
\brief remove all elements, even the mandatory ones

19
src/EbmlMaster.cpp
View File

@ -455,14 +455,16 @@ void EbmlMaster::Read(EbmlStream & inDataStream, const EbmlSemanticContext & sCo
}
}
processCrc:
for (Index=0; Index<ElementList.size(); Index++) {
if ((EbmlId)(*ElementList[Index]) == EBML_ID(EbmlCrc32)) {
EBML_MASTER_ITERATOR Itr;
for (Itr = ElementList.begin(); Itr != ElementList.end();) {
if ((EbmlId)(*(*Itr)) == EBML_ID(EbmlCrc32)) {
bChecksumUsed = true;
// remove the element
Checksum = *(static_cast<EbmlCrc32*>(ElementList[Index]));
delete ElementList[Index];
Remove(Index--);
Checksum = *(static_cast<EbmlCrc32*>(*Itr));
delete *Itr;
Remove(Itr);
}
else ++Itr;
}
SetValueIsSet();
}
@ -473,7 +475,7 @@ void EbmlMaster::Remove(size_t Index)
if (Index < ElementList.size()) {
std::vector<EbmlElement *>::iterator Itr = ElementList.begin();
while (Index-- > 0) {
Itr++;
++Itr;
}
ElementList.erase(Itr);
@ -485,6 +487,11 @@ void EbmlMaster::Remove(const std::vector<EbmlElement *>::const_iterator & Itr)
ElementList.erase(Itr);
}
void EbmlMaster::Remove(const std::vector<EbmlElement *>::const_reverse_iterator & Itr)
{
ElementList.erase(Itr.base());
}
bool EbmlMaster::VerifyChecksum() const
{
if (!bChecksumUsed)