239     struct type_traits : scalar_traits <T> {  struct
240         typedef type_traits<T> self_type;
241         typedef T value_type;
242         typedef const T &const_reference;
243         typedef T &reference;
245         typedef T real_type;
246         typedef real_type precision_type;
247         static const unsigned multiplies_complexity = 1;
253     struct type_traits<float> : scalar_traits<float> {  struct
254         typedef type_traits<float> self_type;
255         typedef float value_type;
256         typedef const value_type &const_reference;
257         typedef value_type &reference;
258         typedef value_type real_type;
259         typedef double precision_type;
262     struct type_traits<double> : scalar_traits<double> {  struct
263         typedef type_traits<double> self_type;
264         typedef double value_type;
265         typedef const value_type &const_reference;
266         typedef value_type &reference;
267         typedef value_type real_type;
268         typedef long double precision_type;
271     struct type_traits<long double>  : scalar_traits<long double> {  struct
272         typedef type_traits<long double> self_type;
273         typedef long double value_type;
274         typedef const value_type &const_reference;
275         typedef value_type &reference;
276         typedef value_type real_type;
277         typedef value_type precision_type;
355     struct type_traits<std::complex<float> > : complex_traits<std::complex<float> >{  struct
356         typedef type_traits<std::complex<float> > self_type;
357         typedef std::complex<float> value_type;
358         typedef const value_type &const_reference;
359         typedef value_type &reference;
360         typedef float real_type;
361         typedef std::complex<double> precision_type;
365     struct type_traits<std::complex<double> > : complex_traits<std::complex<double> >{  struct
366         typedef type_traits<std::complex<double> > self_type;
367         typedef std::complex<double> value_type;
368         typedef const value_type &const_reference;
369         typedef value_type &reference;
370         typedef double real_type;
371         typedef std::complex<long double> precision_type;
374     struct type_traits<std::complex<long double> > : complex_traits<std::complex<long double> > {  struct
375         typedef type_traits<std::complex<long double> > self_type;
376         typedef std::complex<long double> value_type;
377         typedef const value_type &const_reference;
378         typedef value_type &reference;
379         typedef long double real_type;
380         typedef value_type precision_type;
386 …struct type_traits<boost::numeric::interval<float> > : scalar_traits<boost::numeric::interval<floa…  struct
387         typedef type_traits<boost::numeric::interval<float> > self_type;
388         typedef boost::numeric::interval<float> value_type;
389         typedef const value_type &const_reference;
390         typedef value_type &reference;
391         typedef value_type real_type;
392         typedef boost::numeric::interval<double> precision_type;
396 …struct type_traits<boost::numeric::interval<double> > : scalar_traits<boost::numeric::interval<dou…  struct
397         typedef type_traits<boost::numeric::interval<double> > self_type;
398         typedef boost::numeric::interval<double> value_type;
399         typedef const value_type &const_reference;
400         typedef value_type &reference;
401         typedef value_type real_type;
402         typedef boost::numeric::interval<long double> precision_type;
405 …struct type_traits<boost::numeric::interval<long double> > : scalar_traits<boost::numeric::interva…  struct
406         typedef type_traits<boost::numeric::interval<long double> > self_type;
407         typedef boost::numeric::interval<long double> value_type;
408         typedef const value_type &const_reference;
409         typedef value_type &reference;
410         typedef value_type real_type;
411         typedef value_type precision_type;