Type support
Basic types
Fundamental types
Fixed width integer types (C++11)
Numeric limits
C numeric limits interface
Runtime type information
Type traits
Type categories
Type properties
(C++11)(until C++20)
(C++11)(deprecated in C++20)
Type trait constants
Constant evaluation context
Supported operations
Relationships and property queries
Type modifications
Type transformations
(C++11)(until C++20)(C++17)
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.

[edit] Standard specializations

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
char8_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

[edit] See also

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