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#include <fstream>
#include <vector>
namespace cmsys {
using std::ifstream;
using std::ofstream;
using std::fstream;
}
namespace ns {
using std::ifstream;
using std::ofstream;
using std::fstream;
namespace ns {
using std::ifstream;
using std::ofstream;
using std::fstream;
}
class cl
{
public:
using ifstream = std::ifstream;
using ofstream = std::ofstream;
using fstream = std::fstream;
};
using ifs = std::ifstream;
using ofs = std::ofstream;
using fs = std::fstream;
}
int main()
{
using std::ifstream;
using std::ofstream;
using std::fstream;
// Correction needed
ifstream ifsUnqual;
std::ifstream ifsQual;
ns::ifstream ifsNS;
ns::ns::ifstream ifsNested;
ns::cl::ifstream ifsClass;
ns::ifs ifsRenamed;
ofstream ofsUnqual;
std::ofstream ofsQual;
ns::ofstream ofsNS;
ns::ns::ofstream ofsNested;
ns::cl::ofstream ofsClass;
ns::ofs ofsRenamed;
fstream fsUnqual;
std::fstream fsQual;
ns::fstream fsNS;
ns::ns::fstream fsNested;
ns::ns::fstream fsClass;
ns::fs fsRenamed;
std::ifstream::off_type offsetQual = 0;
ifstream::off_type offsetUnqual = 0;
ns::ifstream::off_type offsetNS = 0;
ns::ns::ifstream::off_type offsetNested = 0;
ns::ns::ifstream::traits_type::off_type offsetTraitsNested = 0;
ns::cl::ifstream::traits_type::off_type offsetTraitsClass = 0;
std::vector<ifstream> ifsVectorUnqual;
// No correction needed
cmsys::ifstream ifsCmsys;
cmsys::ofstream ofsCmsys;
cmsys::fstream fsCmsys;
cmsys::ifstream::off_type offsetCmsys = 0;
cmsys::ifstream::traits_type::off_type offsetTraitsCmsys = 0;
std::vector<cmsys::ifstream> ifsVectorCmsys;
std::basic_ifstream<wchar_t> ifsWchar;
return 0;
}
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