Enumeration

NSDataReadingOptions

Options for methods used to read data objects.

Declaration

typedef enum NSDataReadingOptions : NSUInteger {
    ...
} NSDataReadingOptions;

Topics

Constants

NSDataReadingMappedIfSafe

A hint indicating the file should be mapped into virtual memory, if possible and safe.

NSDataReadingUncached

A hint indicating the file should not be stored in the file-system caches.

NSDataReadingMappedAlways

Hint to map the file in if possible.

Legacy Constants

See Also

Reading Data from a File

+ dataWithContentsOfFile:

Creates a data object by reading every byte from the file at a given path.

+ dataWithContentsOfFile:options:error:

Creates a data object by reading every byte from the file at a given path.

+ dataWithContentsOfURL:

Creates a data object containing the data from the location specified by a given URL.

+ dataWithContentsOfURL:options:error:

Creates a data object containing the data from the location specified by a given URL.

- initWithContentsOfFile:

Initializes a data object with the content of the file at a given path.

- initWithContentsOfFile:options:error:

Initializes a data object with the content of the file at a given path.

- initWithContentsOfURL:

Initializes a data object with the data from the location specified by a given URL.

- initWithContentsOfURL:options:error:

Initializes a data object with the data from the location specified by a given URL.

- initWithContentsOfMappedFile:

Initializes a data object with the contents of the mapped file specified by a given path.

Deprecated
+ dataWithContentsOfMappedFile:

Creates a data object from the mapped file at a given path.

Deprecated