std::numeric_limits::radix
| static const int radix; |  | (until C++11) | 
|---|---|---|
| static constexpr int radix; |  | (since C++11) | 
标准专业化
| 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 | 
另见
| digits static | number of radix digits that can be represented without change (public static member constant) | 
|---|---|
| min_exponent static | one more than the smallest negative power of the radix that is a valid normalized floating-point value (public static member constant) | 
| max_exponent 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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