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 |
char16_t | 2 |
char32_t | 2 |
short | 2 |
unsigned short | 2 |
int | 2 |
unsigned int | 2 |
long | 2 |
unsigned long | 2 |
long long | 2 |
unsigned long long | 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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