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.
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 (since C++20) | 2 |
| char16_t (since C++11) | 2 |
| char32_t (since C++11) | 2 |
| short | 2 |
| unsigned short | 2 |
| int | 2 |
| unsigned int | 2 |
| long | 2 |
| unsigned long | 2 |
| long long (since C++11) | 2 |
| unsigned long long (since C++11) | 2 |
| float | FLT_RADIX |
| double | FLT_RADIX |
| long double | FLT_RADIX |
|
[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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