std::ldexp — cppreference.com

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Déclaré dans l'en-tête `<cmath>`
`float ldexp( float arg, int exp );`
`double ldexp( double arg, int exp );`
`long double ldexp( long double arg, int exp );`
`double ldexp( Integral arg, int exp );`		(depuis C++11)

Multiplie un arg virgule flottante valeur par 2 élevé à la puissance exp .

Original:

Multiplies an floating point value arg by 2 raised to power exp.

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arg	-	valeur du point flottant Original: floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
exp	-	valeur entière Original: integer value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

x×2^exp rendements

Original:

returns x×2^exp

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Si le résultat est trop grand pour le type sous-jacent, une erreur d'intervalle se produit et HUGE_VAL est retourné .

Original:

If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned.

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	se décompose en un certain nombre mantisse et d'une puissance de `2` Original: decomposes a number into significand and a power of `2` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) [edit]

	multiplie par un nombre FLT_RADIX élevé à une puissance Original: multiplies a number by FLT_RADIX raised to a power The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) [edit]