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std::log10<div class="t-tr-text">(Std :: valarray)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::valarray)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div>

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definiert in Header

<valarray>

template< class T > valarray<T> log10( const valarray<T>& va );

For each element in va computes common (base 10) logarithm of the value of the element.

Parameter

va -

Wert-Array, um die Operation zu verarbeiten

Original:

value array to apply the operation to

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Rückgabewert

Value array common logarithms of the values in va.

Notes

Unqualifizierte Funktion (log10) verwendet wird, um die Berechnung auszuführen. Wenn diese Funktion nicht verfügbar ist, wird std::log10 verwendet wird wegen Argument abhängig Lookup .

Original:

Unqualified function (log10) is used to perform the computation. If such function is not available, std::log10 is used due to argument dependent lookup.

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Die Funktion kann mit dem Rückgabetyp anders std::valarray umgesetzt werden. In diesem Fall weist die Ersetzungsart die folgenden Eigenschaften:

Original:

The function can be implemented with the return type different from std::valarray. In this case, the replacement type has the following properties:

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  • Alle const Elementfunktionen std::valarray bereitgestellt werden .

    Original:

    All const member functions of std::valarray are provided.

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  • std::valarray, std::slice_array, std::gslice_array, std::mask_array und std::indirect_array kann aus dem Ersatz-Typ gebaut werden .

    Original:

    std::valarray, std::slice_array, std::gslice_array, std::mask_array and std::indirect_array can be constructed from the replacement type.

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  • Alle Funktionen Annehmen eines Argumente des Typs const std::valarray& sollten auch akzeptieren, den Austausch Typ .

    Original:

    All functions accepting a arguments of type const std::valarray& should also accept the replacement type.

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  • Alle Funktionen mit zwei Parametern vom Typ const std::valarray& sollten akzeptieren, jede Kombination von const std::valarray& und den Ersatz Typ .

    Original:

    All functions accepting two arguments of type const std::valarray& should accept every combination of const std::valarray& and the replacement type.

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Mögliche Implementierung

template< class T >
valarray<T> log10( const valarray<T>& va )
{
    valarray<T> other = va;
    for (T &i : other) {
        i = log10(i);
    }
}

Beispiel