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#Post#: 12--------------------------------------------------
It accepts one parameter
DIR By: asim roy
Date: September 16, 2023, 3:39 am
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On the operating system device drivers map to the file system
and can also read from hardware devices especially
character-based devices. The description of the functions
assumes that you are familiar with the basics of language
programming on your chosen operating system or platform.
Beginners may find it useful to take a short course in Basic
Programming which explains basic concepts such as variables
functions and arrays. The Programming for Beginners guide goes
into more detail and includes more examples of other
file-handling routines for and.
Opening and Closing Files Before a file can be read it must be
opened. Once you are done using the file you should close it to
allow other applications to access it. The two Phone Number List
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functions used here are and . Although
this description focuses on rather than file-handling functions
in general a brief introduction to these routines may be
helpful. Opens a file for reading or writing and returns a
pointer to the file stream. It accepts two parameters the first
is the filename of the file to open optionally including the
file path the second is the access mode which can be one of six
settings.
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The access mode used in the sample code included with this
article is which opens a file for reading. The file must exist
when using this parameter. Close the file and release all locks.
the pointer returned by a successful call. Reading from a text
file The following example code reads the first characters from
the specified text file and writes the information to the
console or . To use this code you should first place a text file
in the same directory as your application or create a text file
using a text editor such as Notepad or Notepad. Programming
Languages Top Course The call to in this example is detailed
below.
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