GNU Octave Manual Version 3 by John W. Eaton, David Bateman, Søren Hauberg Paperback (6"x9"), 568 pages ISBN 095461206X RRP £24.95 ($39.95) |
14.2.3 Line-Oriented Input
To read from a file it must be opened for reading using fopen
.
Then a line can be read from the file using fgetl
as the following
code illustrates
fid = fopen ("free.txt"); txt = fgetl (fid) -| Free Software is needed for Free Science fclose (fid);
This of course assumes that the file ‘free.txt’ exists and contains the line ‘Free Software is needed for Free Science’.
- Built-in Function: fgetl (fid, len)
- Read characters from a file, stopping after a newline, or EOF,
or len characters have been read. The characters read, excluding
the possible trailing newline, are returned as a string.
If len is omitted,
fgetl
reads until the next newline character.If there are no more characters to read,
fgetl
returns -1.See also fread, fscanf
- Built-in Function: fgets (fid, len)
- Read characters from a file, stopping after a newline, or EOF,
or len characters have been read. The characters read, including
the possible trailing newline, are returned as a string.
If len is omitted,
fgets
reads until the next newline character.If there are no more characters to read,
fgets
returns -1.See also fread, fscanf
ISBN 095461206X | GNU Octave Manual Version 3 | See the print edition |