util::quantities::concepts::Prefix< R > Struct Template Reference

#include <quantities.h>

Public Types
using	ratio = R
	The ratio this prefix is about. More...

Static Public Member Functions
static constexpr auto	names (bool Long=false)
	Returns the unit symbol (Long false) or name (Long true). More...
static constexpr auto	symbol ()
	Returns the symbol of the prefix. More...
static constexpr auto	name ()
	Returns the full name of the prefix. More...

Detailed Description

template<typename R>
struct util::quantities::concepts::Prefix< R >

Definition at line 378 of file quantities.h.

Member Typedef Documentation

template<typename R >

using util::quantities::concepts::Prefix< R >::ratio = R

The ratio this prefix is about.

Definition at line 379 of file quantities.h.

Member Function Documentation

template<typename R >

static constexpr auto util::quantities::concepts::Prefix< R >::name ( )

inlinestatic

Returns the full name of the prefix.

Definition at line 388 of file quantities.h.

{ return names(true); }

template<typename R >

constexpr auto util::quantities::concepts::Prefix< R >::names ( bool  Long = false )

static

Returns the unit symbol (Long false) or name (Long true).

Definition at line 1251 of file quantities.h.

{
  if constexpr(std::is_same<ratio, std::tera>())
    return Long? "tera"sv: "T"sv;
  if constexpr(std::is_same<ratio, std::giga>())
    return Long? "giga"sv: "G"sv;
  if constexpr(std::is_same<ratio, std::mega>())
    return Long? "mega"sv: "M"sv;
  if constexpr(std::is_same<ratio, std::kilo>())
    return Long? "kilo"sv: "k"sv;
  if constexpr(std::is_same<ratio, std::ratio<1>>())
    return ""sv;
  if constexpr(std::is_same<ratio, std::deci>())
    return Long? "deci"sv: "d"sv;
  if constexpr(std::is_same<ratio, std::centi>())
    return Long? "centi"sv: "c"sv;
  if constexpr(std::is_same<ratio, std::milli>())
    return Long? "milli"sv: "m"sv;
  if constexpr(std::is_same<ratio, std::micro>())
    return Long? "micro"sv: "u"sv;
  if constexpr(std::is_same<ratio, std::nano>())
    return Long? "nano"sv:  "n"sv;
  if constexpr(std::is_same<ratio, std::pico>())
    return Long? "pico"sv:  "p"sv;
  if constexpr(std::is_same<ratio, std::femto>())
    return Long? "femto"sv: "f"sv;
  // TODO complete the long list of prefixes

  // backup; can't use `to_string()` because of `constexpr` requirement
  return Long? "???"sv:  "?"sv;
} // util::quantities::concepts::Prefix<R>::names()

template<typename R >

static constexpr auto util::quantities::concepts::Prefix< R >::symbol ( )

inlinestatic

Returns the symbol of the prefix.

Definition at line 385 of file quantities.h.

{ return names(false); }

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The documentation for this struct was generated from the following file:

• quantities.h