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Overview of Files Concept.

Posted Date: 17 Jan 2008 Resource Type: Articles/Knowledge Sharing Category: Computer & Technology

Posted By: Sagaya James Immanuel Member Level: Bronze
Rating:

Points: 2

Modes and Functions:

Character String Formatted Record

getc() fgets() fscanf() fread()
putc() fputs() fprintf() fwrite()

“r” Open for reading. The file must exist
“w” Open for writing. If the file exist the contents will be overwritten.
If the file does not exist it will be created
“a” Open for append. Material will be added to the end of an existing
file, or a new file will be created
“r+” Open for both reading and writing. The file must already exist
“w+” Open for both reading and writing oif the file exists its contents are
written over
“a+” Open for both reading and appending if the file does not exist it will
be created

0 “stdin” Standard input
1 “stdout” Standard output
2 “stderr” Standard error
3 “stdaux” Auxiliary device
4 “stdprn” Printer

0 Beginning of file
1 Current position of file pointer
2 End of file

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