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std::numeric_limits::is_specialized

static const bool is_specialized;		(until C++11)
static constexpr bool is_specialized;		(since C++11)

The value of std::numeric_limits<T>::is_specialized is true for all T for which there exists a specialization of std::numeric_limits.

`T`	value of `std::numeric_limits<T>::is_specialized`
/* non-specialized */	`false`
`bool`	`true`
`char`	`true`
`signed char`	`true`
`unsigned char`	`true`
`wchar_t`	`true`
`char16_t`	`true`
`char32_t`	`true`
`short`	`true`
`unsigned short`	`true`
`int`	`true`
`unsigned int`	`true`
`long`	`true`
`unsigned long`	`true`
`long long`	`true`
`unsigned long long`	`true`
`float`	`true`
`double`	`true`
`long double`	`true`

is_integer [static]	identifies integer types (public static member constant)
is_iec559 [static]	identifies the IEC 559/IEEE 754 floating-point types (public static member constant)
is_exact [static]	identifies exact types (public static member constant)
is_bounded [static]	identifies types that represent a finite set of values (public static member constant)

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