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std::malloc

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< cpp‎ | memory‎ | c

 
 
 
La gestion dynamique de la mémoire
Faible niveau de gestion de la mémoire
Répartiteurs
Original:
Allocators
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allocator
allocator_traits (C++11)
allocator_arg_t (C++11)
allocator_arg (C++11)
uses_allocator (C++11)
scoped_allocator_adaptor (C++11)
Non initialisée stockage
Original:
Uninitialized storage
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uninitialized_copy
uninitialized_copy_n (C++11)
uninitialized_fill
uninitialized_fill_n
raw_storage_iterator
get_temporary_buffer
return_temporary_buffer
Pointeurs intelligents
Original:
Smart pointers
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unique_ptr (C++11)
shared_ptr (C++11)
weak_ptr (C++11)
auto_ptr (obsolète)
owner_less (C++11)
enable_shared_from_this (C++11)
bad_weak_ptr (C++11)
default_delete (C++11)
Soutien garbage collection
Original:
Garbage collection support
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declare_reachable (C++11)
undeclare_reachable (C++11)
declare_no_pointers (C++11)
undeclare_no_pointers (C++11)
pointer_safety (C++11)
get_pointer_safety (C++11)
Divers
Original:
Miscellaneous
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pointer_traits (C++11)
addressof (C++11)
align (C++11)
Bibliothèque C
Original:
C Library
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malloc
calloc
 
Defined in header <cstdlib>
void* malloc( std::size_t size );
Alloue size octets de stockage non initialisée .
Original:
Allocates size bytes of uninitialized storage.
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Si l'allocation réussit, renvoie un pointeur vers le plus bas (premier) octet dans le bloc de mémoire alloué qui est correctement alignée pour n'importe quel type d'objet .
Original:
If allocation succeeds, returns a pointer to the lowest (first) byte in the allocated memory block that is suitably aligned for any object type.
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Si size est égal à zéro, le comportement est défini par l'implémentation (pointeur NULL peut être retourné, ou quelque pointeur non NULL peuvent être retournés qui ne peut pas être utilisé pour accéder au stockage)
Original:
If size is zero, the behavior is implementation defined (null pointer may be returned, or some non-null pointer may be returned that may not be used to access storage)
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Sommaire

[modifier] Paramètres

size -
nombre d'octets à allouer
Original:
number of bytes to allocate
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[modifier] Retourne la valeur

Pointeur au début de la mémoire nouvellement allouée ou pointeur null si erreur s'est produite. Le pointeur doit être libérée avec free() .
Original:
Pointer to the beginning of newly allocated memory or null pointer if error has occurred. The pointer must be deallocated with free().
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[modifier] Notes

Cette fonction n'est pas appeler des constructeurs ou initialiser la mémoire d'aucune façon. Ainsi méthode préférée de l'allocation de mémoire est l'expression new .
Original:
This function does not call constructors or initialize memory in any way. Thus preferred method of memory allocation is new expression.
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[modifier] Exemple

[modifier] Voir aussi

fonctions d'allocation
Original:
allocation functions
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(fonction) [edit]
obtient de stockage non initialisée
Original:
obtains uninitialized storage
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(fonction générique) [edit]
C documentation for malloc