A static variable in itkNiftiImageIO.cxx

Engineering
1

static std::string prev;
if (prev != this->GetFileName())
{
#if defined(ITK_USE_VERY_VERBOSE_NIFTI_DEBUGGING)
DumpNiftiHeader(this->GetFileName());
#endif
prev = this->GetFileName();
}

this “prev” useless maybe, damaging Thread Safety