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FLT_EVAL_METHOD

De cppreference.com
< cpp‎ | types‎ | climits

 
 
 
Soutien aux types fondamentaux
Les types de base
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Basic types
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Types fondamentaux
Fixe les types entiers largeur (C++11)
Limites numériques
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Numeric limits
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numeric_limits
C numérique limite interface
Informations sur le type d'exécution
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Runtime type information
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Caractères de type
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Type traits
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Catégories de type primaire
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Primary type categories
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is_void (C++11)
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Les propriétés du type
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Type properties
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is_const (C++11)
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Opérations prises en charge
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Supported operations
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is_constructible
is_trivially_constructible
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is_default_constructible
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(C++11)
(C++11)
(C++11)
is_copy_constructible
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(C++11)
(C++11)
(C++11)
is_move_constructible
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(C++11)
(C++11)
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is_assignable
is_trivially_assignable
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is_copy_assignable
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is_move_assignable
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(C++11)
(C++11)
(C++11)
is_destructible
is_trivially_destructible
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(C++11)
(C++11)
(C++11)
has_virtual_destructor (C++11)
Les relations et les requêtes de propriété
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Relationships and property queries
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is_same (C++11)
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rank (C++11)
extent (C++11)
Modifications de type
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Type modifications
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remove_cv
remove_const
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(C++11)
(C++11)
add_cv
add_const
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(C++11)
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make_signed (C++11)
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Transformations de type
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Type transformations
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aligned_storage (C++11)
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decay (C++11)
enable_if (C++11)
conditional (C++11)
common_type (C++11)
underlying_type (C++11)
result_of (C++11)
Tapez constantes traits
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Type trait constants
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integral_constant (C++11)
 
 
Defined in header <cfloat>
#define FLT_EVAL_METHOD /* implementation defined */
(depuis C++11)
Spécifie la précision dans lequel toutes les opérations arithmétiques à virgule flottante sont fait .
Original:
Specifies the precision in which all floating-point arithmetic operations are done.
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Valeur
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Value
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Explanation
negative values except -1
mise en œuvre comportement défini
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implementation-defined behavior
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-1
la précision par défaut n'est pas connue
Original:
the default precision is not known
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0
toutes les opérations et les constantes d'évaluer la portée et la précision du type utilisé. En outre, float_t et double_t sont équivalentes à float et double respectivement
Original:
all operations and constants evaluate in the range and precision of the type used. Additionally, float_t and double_t are equivalent to float and double respectively
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1
toutes les opérations et les constantes d'évaluer la portée et la précision de double. En outre, à la fois float_t et double_t sont équivalentes à double
Original:
all operations and constants evaluate in the range and precision of double. Additionally, both float_t and double_t are equivalent to double
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2
toutes les opérations et les constantes d'évaluer la portée et la précision de long double. En outre, à la fois float_t et double_t sont équivalentes à long double
Original:
all operations and constants evaluate in the range and precision of long double. Additionally, both float_t and double_t are equivalent to long double
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[modifier] Voir aussi

C documentation for FLT_EVAL_METHOD