std::numeric_limits<T>::radix
static const int radix; |
(until C++11) | |
static constexpr int radix; |
(since C++11) |
The value of std::numeric_limits<T>::radix
is the base of the number system used in the representation of the type. It is 2 for all binary numeric types, but it may be, for example, 10 for IEEE 754 decimal floating-point types or for third-party binary-coded decimal integers. This constant is meaningful for all specializations.
Standard specializations
T |
value of std::numeric_limits<T>::radix |
---|---|
/* non-specialized */ | 0 |
bool |
2 |
char |
2 |
signed char |
2 |
unsigned char |
2 |
wchar_t |
2 |
char8_t (C++20) |
2 |
char16_t (C++11) |
2 |
char32_t (C++11) |
2 |
short |
2 |
unsigned short |
2 |
int |
2 |
unsigned int |
2 |
long |
2 |
unsigned long |
2 |
long long (C++11) |
2 |
unsigned long long (C++11) |
2 |
float |
FLT_RADIX |
double |
FLT_RADIX |
long double |
FLT_RADIX |
See also
[static]
|
number of radix digits that can be represented without change (public static member constant) |
[static]
|
one more than the smallest negative power of the radix that is a valid normalized floating-point value (public static member constant) |
[static]
|
one more than the largest integer power of the radix that is a valid finite floating-point value (public static member constant) |
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