ossia::value Class Reference

The value class. More...

Detailed Description

The value class.

Core type of the ossia API. A value is a variant of multiple fundamental types.

A value can be in an "unset" state; it has to be checked for this. e.g. :

void f(ossia::value& v) {
  if(v.valid())
  {
    auto maybe_int = v.target<Int>();
    if(maybe_int)
      std::cout << maybe_int->value;
    else // we know for some reason that it is a float
      std::cout << v.get<Float>().value;
  }
}

A generic operation can be applied safely to a value with a visitor. See for instance value_to_pretty_string.

Public Types
using	value_type = value_variant

Public Member Functions
template<typename T >
	value (T *)=delete
	value (const char *txt)
OSSIA_INLINE	value (impulse val) noexcept
OSSIA_INLINE	value (bool val) noexcept
OSSIA_INLINE	value (int val) noexcept
OSSIA_INLINE	value (long val) noexcept
OSSIA_INLINE	value (float val) noexcept
OSSIA_INLINE	value (double val) noexcept
OSSIA_INLINE	value (const std::string &val) noexcept
OSSIA_INLINE	value (const std::vector< ossia::value > &val) noexcept
OSSIA_INLINE	value (const value_map_type &val) noexcept
OSSIA_INLINE	value (std::array< float, 2 > val) noexcept
OSSIA_INLINE	value (std::array< float, 3 > val) noexcept
OSSIA_INLINE	value (std::array< float, 4 > val) noexcept
OSSIA_INLINE	value (std::string &&val) noexcept
OSSIA_INLINE	value (std::vector< ossia::value > &&val) noexcept
OSSIA_INLINE	value (value_map_type &&val) noexcept
template<typename T , typename... Args>
OSSIA_INLINE	value (detail::dummy< T > t, Args &&... args) noexcept
OSSIA_INLINE value &	operator= (ossia::impulse val) noexcept
OSSIA_INLINE value &	operator= (const char *c) noexcept
OSSIA_INLINE value &	operator= (bool val) noexcept
OSSIA_INLINE value &	operator= (int32_t val) noexcept
OSSIA_INLINE value &	operator= (float val) noexcept
OSSIA_INLINE value &	operator= (const std::string &val) noexcept
OSSIA_INLINE value &	operator= (const std::vector< ossia::value > &val) noexcept
OSSIA_INLINE value &	operator= (const value_map_type &val) noexcept
OSSIA_INLINE value &	operator= (std::array< float, 2 > val) noexcept
OSSIA_INLINE value &	operator= (std::array< float, 3 > val) noexcept
OSSIA_INLINE value &	operator= (std::array< float, 4 > val) noexcept
OSSIA_INLINE value &	operator= (std::string &&val) noexcept
OSSIA_INLINE value &	operator= (std::vector< ossia::value > &&val) noexcept
OSSIA_INLINE value &	operator= (value_map_type &&val) noexcept
	value (const value &other) noexcept
	value (value &&other) noexcept
value &	operator= (const value &other) noexcept
value &	operator= (value &&other) noexcept
	operator value_type & ()
	operator const value_type & () const
template<typename T >
OSSIA_INLINE const T &	get () const
template<typename T >
OSSIA_INLINE T &	get ()
template<typename T >
OSSIA_INLINE const T *	target () const &noexcept
template<typename T >
OSSIA_INLINE T *	target () &noexcept
template<typename T >
OSSIA_INLINE T *	target () &&noexcept=delete
OSSIA_INLINE ossia::val_type	get_type () const noexcept
bool	valid () const noexcept
void	reset () noexcept
template<typename Visitor >
auto	apply (Visitor &&vis) -> decltype(auto)
template<typename Visitor >
auto	apply (Visitor &&vis) const -> decltype(auto)

Static Public Member Functions
template<typename T , typename... Args>
static OSSIA_INLINE ossia::value	make (Args &&... args) noexcept

Public Attributes
value_type	v