std::numeric_limits::denorm_min
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<metanoindex/>
<tbody> </tbody> static T denorm_min() |
(avant C++11) | |
static constexpr T denorm_min() |
(depuis C++11) | |
Retourne le valeur inférieure à la normale minimum positive de la
T type, s'il std::numeric_limits<T>::has_denorm != std::denorm_absent, sinon retourne std::numeric_limits<T>::min(). N'a de sens que pour les types à virgule flottante .Original:
Returns the minimum positive valeur inférieure à la normale of the type
T, if std::numeric_limits<T>::has_denorm != std::denorm_absent, otherwise returns std::numeric_limits<T>::min(). Only meaningful for floating-point types.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Retourne la valeur
T
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std::numeric_limits<T>::denorm_min()
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| /* non-specialized */ | T();
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bool
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false
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char
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0
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signed char
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0
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unsigned char
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0
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wchar_t
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0
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char16_t
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0
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char32_t
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0
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short
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0
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unsigned short
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0
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int
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0
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unsigned int
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0
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long
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0
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unsigned long
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0
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long long
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0
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unsigned long long
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0
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float
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2-149 if std::numeric_limits<float>::is_iec559 == true
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double
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2-1074 if std::numeric_limits<double>::is_iec559 == true
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long double
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/ * Défini par l'implémentation * /
Original: /* implementation-defined */ The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Exceptions
Exemple
Demonstates la structure sous-jacente de la mèche denorm_min ()
Original:
Demonstates the underlying bit structure of the denorm_min()
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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#include <cstdint>
#include <limits>
#include <cassert>
int main()
{
// the smallest subnormal value has sign bit = 0, exponent = 0
// and only the least significant bit of the fraction is 1
uint32_t denorm_bits = 0x0001;
float denorm_float = reinterpret_cast<float&>(denorm_bits);
assert(denorm_float == std::numeric_limits<float>::denorm_min());
}
Voir aussi
[ statique ]Original: static The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
renvoie la plus petite valeur finie du type donné Original: returns the smallest finite value of the given type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique statique) |
[ statique ]Original: static The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
identifie le style utilisé par la dénormalisation du type à virgule flottante Original: identifies the denormalization style used by the floating-point type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (constante membre statique publique) |
[ statique ] (C++11)Original: static The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
renvoie la plus petite valeur finie du type donné Original: returns the lowest finite value of the given type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique statique) |