Error while parsing form istream
- From: Marco Olimpi <badstorm gmail com>
- To: libxmlplusplus-list gnome org
- Subject: Error while parsing form istream
- Date: Thu, 9 Aug 2018 10:37:02 +0200
Hi,
I'm new in C++ programming and I'm trying to create a little program the parse some xml inside a zip file. For the zip part I used the library
https://bitbucket.org/wbenny/ziplib and for parsing the xml I want to use libxml++.
The problem is that I get this error with g++ that I realy don't understand:
src/zip/UnzipFile.cc: In member function ‘void Dopc::UnzipFile::open(const string&)’:
src/zip/UnzipFile.cc:50:54: error: no matching function for call to ‘xmlpp::DomParser::parse_stream(std::basic_istream<char>**)’
parser.parse_stream(&decompressStream);
^
In file included from /usr/local/include/libxml++-3.0/libxml++/libxml++.h:54:0,
from src/zip/UnzipFile.cc:6:
/usr/local/include/libxml++-3.0/libxml++/parsers/domparser.h:75:8: note: candidate: virtual void xmlpp::DomParser::parse_stream(std::istream&)
void parse_stream(std::istream& in) override;
^~~~~~~~~~~~
/usr/local/include/libxml++-3.0/libxml++/parsers/domparser.h:75:8: note: no known conversion for argument 1 from ‘std::basic_istream<char>**’ to ‘std::istream& {aka std::basic_istream<char>&}’
This is the code of my program:
void UnzipFile::open(const string& p_fileName)
{
ZipArchive::Ptr archive = ZipFile::Open(p_fileName);
size_t entries = archive->GetEntriesCount();
printf("[o] Listing archive (comment: '%s'):\n", archive->GetComment().c_str());
printf("[o] Entries count: %lu\n", entries);
for (size_t i = 0; i < entries; ++i)
{
auto entry = archive->GetEntry(int(i));
if (entry->GetFullName() == "[Content_Types].xml")
{
auto decompressStream = entry->GetDecompressionStream();
printf("[o] -- %s\n", "File XML decompress");
try{
xmlpp::DomParser parser;
parser.set_validate();
parser.parse_stream(&decompressStream);
if (parser)
{
const auto pNode = parser.get_document()->get_root_node();
cout << "XML READ SUCCESS" << endl;
}
} catch (const std::exception& ex){
cerr << "Exception caught: " << ex.what() << endl;
}
} else {
printf("[o] -- %s\n", entry->GetFullName().c_str());
}
}
printf("\n");
}
The strange is that "decompressStream" is a std::istream like the one that parse_stream want. But g++ say the is a no known conversion.
Thanks in advance for your help.
Regards
Marco
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