Instance Method

initWithContentsOfFile:options:error:

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

Declaration

- (instancetype)initWithContentsOfFile:(NSString *)path options:(NSDataReadingOptions)readOptionsMask error:(NSError * _Nullable *)errorPtr;

Parameters

path

The absolute path of the file from which to read data.

mask

A mask that specifies options for reading the data. Constant components are described in NSDataReadingOptions.

errorPtr

If an error occurs, upon return contains an NSError object that describes the problem.

Return Value

A data object initialized by reading into it the data from the file specified by path.

Discussion

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.

- 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.

NSDataReadingOptions

Options for methods used to read data objects.

- 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