NAME¶

std::numeric_limits::radix - std::numeric_limits::radix

Synopsis¶

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 (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

See also¶

digits number of radix digits that can be represented without change
[static] (public static member constant)
min_exponent one more than the smallest negative power of the radix that is a valid
[static] normalized floating-point value
(public static member constant)
max_exponent one more than the largest integer power of the radix that is a valid
[static] finite floating-point value
(public static member constant)