std::experimental:: nullopt
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nullopt
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Definido en el encabezado
<experimental/optional>
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constexpr
nullopt_t nullopt
{
/*unspecified*/
}
;
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(library fundamentals TS) | |
std::experimental::nullopt
es una constante de tipo
std::experimental::nullopt_t
que se utiliza para indicar un tipo
optional
con estado no inicializado.
Véase también
|
(library fundamentals TS)
|
indicador de tipo opcional con estado no inicializado
(clase) |