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std::numeric_limits::min_exponent10

提供: cppreference.com

 
 
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static const int min_exponent10
(C++11以前)
static constexpr int min_exponent10
(C++11およびそれ以降)
std::numeric_limits<T>::min_exponent10の値が最小の負の数n10n
が浮動小数点型Tの有効な正規化した値であるようなものである.
Original:
The value of std::numeric_limits<T>::min_exponent10 is the lowest negative number n such that 10n
is a valid normalized value of the floating-point type T.
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[編集] 標準の専門分野

T
std::numeric_limits<T>::min_exponent10の値
Original:
value of std::numeric_limits<T>::min_exponent10
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/* non-specialized */ 0
bool 0
char 0
signed char 0
unsigned char 0
wchar_t 0
char16_t 0
char32_t 0
short 0
unsigned short 0
int 0
unsigned int 0
long 0
unsigned long 0
long long 0
unsigned long long 0
float FLT_MIN_10_EXP
double DBL_MIN_10_EXP
long double LDBL_MIN_10_EXP

[編集]

float型のためmin_exponent、min_exponent10、min、および基数の関係を示しています
Original:
Demonstrates the relationships of min_exponent, min_exponent10, min, and radix for the type float:
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#include <iostream>
int main()
{
    std::cout << "min() = " << std::numeric_limits<float>::min() << '\n'
              << "min_exponent10 = " << std::numeric_limits<float>::min_exponent10 << '\n'
              << std::hexfloat
              << "min() = " << std::numeric_limits<float>::min() << '\n'
              << "min_exponent = " << std::numeric_limits<float>::min_exponent << '\n';
}

Output:

min() = 1.17549e-38
min_exponent10 = -37
min() = 0x1p-126
min_exponent = -125

[編集] も参照してください

有効な正規化された浮動小数点値である基数の最小の負のパワーよりも1
Original:
one more than the smallest negative power of the radix that is a valid normalized floating-point value
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(パブリック静的メンバ定数) [edit]
有効な有限浮動小数点値である基数の最大の整数乗よりも1
Original:
one more than the largest integer power of the radix that is a valid finite floating-point value
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(パブリック静的メンバ定数) [edit]
有効な有限浮動小数点値である10の最大の整数乗
Original:
the largest integer power of 10 that is a valid finite floating-point value
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(パブリック静的メンバ定数) [edit]