fix_factory.cpp

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#include <itpp/fixed/fix_factory.h>
#include <itpp/fixed/cfix.h>
 
 
namespace itpp
{
 
void Fix_Factory::create(Fix* &ptr, const int n) const
{
  void *p = ::operator new(sizeof(Fix) * n);
  ptr = reinterpret_cast<Fix*>(p);
  // Set fixed-point restrictions
  for (int i = 0; i < n; ++i) {
    new(ptr + i) Fix(0.0, 0, wordlen, emode, omode, qmode, stat_ptr);
  }
}
 
void Fix_Factory::create(CFix* &ptr, const int n) const
{
  void *p = ::operator new(sizeof(CFix) * n);
  ptr = reinterpret_cast<CFix*>(p);
  // Set fixed-point restrictions
  for (int i = 0; i < n; ++i) {
    new(ptr + i) CFix(0.0, 0, wordlen, emode, omode, qmode, stat_ptr);
  }
}
 
template<>
void create_elements<Fix>(Fix* &ptr, const int n, const Factory &f)
{
  if (const Fix_Factory *fix_factory_ptr = dynamic_cast<const Fix_Factory*>(&f)) {
    // Yes, f seems to be a Fix_Factory. Now call the Fix_Factory::create method
    fix_factory_ptr->create(ptr, n);
  }
  else {
    // No, f does not seem to be a Fix_Factory. As a fallback solution,
    // assume that f is DEFAULT_FACTORY and use the default constructor
    void *p = ::operator new(sizeof(Fix) * n);
    ptr = reinterpret_cast<Fix*>(p);
    for (int i = 0; i < n; i++) {
      new(ptr + i) Fix();
    }
  }
}
 
template<>
void create_elements<CFix>(CFix* &ptr, const int n, const Factory &f)
{
  if (const Fix_Factory *fix_factory_ptr = dynamic_cast<const Fix_Factory*>(&f)) {
    // Yes, f seems to be a Fix_Factory. Now call the Fix_Factory::create method
    fix_factory_ptr->create(ptr, n);
  }
  else {
    // No, f does not seem to be a Fix_Factory. As a fallback solution,
    // assume that f is DEFAULT_FACTORY and use the default constructor
    void *p = ::operator new(sizeof(CFix) * n);
    ptr = reinterpret_cast<CFix*>(p);
    for (int i = 0; i < n; i++) {
      new(ptr + i) CFix();
    }
  }
}
 
} // namespace itpp