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When opening a new file that does not yet exist, permissions will be set to However, conversions are currently only supported for ‘ native’,

The parameter arch is a string specifying the default data format The default when no mode isĪdditionally, you may append a "z" to the mode string to open a On Windows, carriage-return on Macintosh).

Mode reading and writing automatically converts linefeeds to theĪppropriate line end character for the system (carriage-return linefeed Open or create a file for reading or writing at the end of theĪppend a "t" to the mode string to open the file in text mode or a Open an existing file for reading and writing. Open or create a file for writing at the end of the file. Though writing to the same file through several different file ids may It is not an error to open a file several times, Opening a file that is already open simply opens it again and returns a The least significant bit first, and then converted to the native Numeric values will be read assuming they are stored in IEEE format with Myfile = fopen ("splat.dat", "r", "ieee-le") The third form of the fopen function returns information about the The second form of the fopen function returns a vector of file idsĬorresponding to all the currently open files, excluding the The mode is a one or twoĬharacter string that specifies whether the file is to be opened for If anĮrror occurs, fid is set to -1 and msg contains theĬorresponding system error message. Interpretation (IEEE big endian, IEEE little endian, etc.), and returnsĪn integer value that may be used to refer to the file later. The specified mode (read-write, read-only, etc.) and architecture The first form of the fopen function opens the named file with

Open a file for low-level I/O or query open files and file descriptors. Built-in Function: fid = fopen ( name) Built-in Function: fid = fopen ( name, mode) Built-in Function: fid = fopen ( name, mode, arch) Built-in Function: = fopen (…) Built-in Function: fid_list = fopen ("all") Built-in Function: = fopen ( fid)