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    std::numeric_limits::min_exponent

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    <tbody> </tbody>
    static const int min_exponent
    		 (fino al c++11)
    static constexpr int min_exponent
    		 (dal C++11)
    Il valore del std::numeric_limits<T>::min_exponent10 è il più basso numero negativo n tale che rn-1
    , dove r std::numeric_limits<T>::radix è è un valore valido normalizzato del tipo a virgola mobile T.
    Original:
    The value of std::numeric_limits<T>::min_exponent10 is the lowest negative number n such that rn-1
    , where r is std::numeric_limits<T>::radix is a valid normalized value of the floating-point type T.
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    Specializzazioni standard

    T
    valore di std::numeric_limits<T>::min_exponent
    Original:
    value of std::numeric_limits<T>::min_exponent
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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_EXP
    double DBL_MIN_EXP
    long double LDBL_MIN_EXP

    Esempio

    Vengono illustrate le relazioni di min_exponent, min_exponent10, min, e la radice per il tipo float:
    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

    Vedi anche

    [statico]
    la radice o base intero utilizzato dalla rappresentazione del tipo specificato
    Original:
    the radix or integer base used by the representation of the given type
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    (pubblico membro statico costante) [modifica]
    [statico]
    la più piccola potenza negativa di dieci, che è un valido normalizzato valore a virgola mobile
    Original:
    the smallest negative power of ten that is a valid normalized floating-point value
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    (pubblico membro statico costante) [modifica]
    [statico]
    maggiore della massima potenza intera della radice che è una valida finita valore a virgola mobile uno
    Original:
    one more than the largest integer power of the radix that is a valid finite floating-point value
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    (pubblico membro statico costante) [modifica]
    [statico]
    la più grande potenza intera di 10 che è un valido finita valore a virgola mobile
    Original:
    the largest integer power of 10 that is a valid finite floating-point value
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    (pubblico membro statico costante) [modifica]