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Top Forums Programming jumping to a specific line in a text file Post 83566 by mridula on Friday 16th of September 2005 01:47:03 AM
Old 09-16-2005
jumping to a specific line in a text file

hi everybody!

i need to read a specific line from a text file using C. can any one suggest how to do it.

i m aware abt fread(), fwrite(), fseek()... but using these allows the pointer to be moved 1 character at a time. Is there a way i could jump directly to a line if i know the line number?

i would also like to know how to read rows of a text file and store it in a variable if the type of data in each row is different.

my sample text file looks like this:

username:xyz
login time: 00:00:00
status:0

Thanks!
 

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FREAD(3S)																 FREAD(3S)

NAME
fread, fwrite - buffered binary input/output SYNOPSIS
#include <stdio.h> fread(ptr, sizeof(*ptr), nitems, stream) FILE *stream; fwrite(ptr, sizeof(*ptr), nitems, stream) FILE *stream; DESCRIPTION
Fread reads, into a block beginning at ptr, nitems of data of the type of *ptr from the named input stream. It returns the number of items actually read. If stream is stdin and the standard output is line buffered, then any partial output line will be flushed before any call to read(2) to satisfy the fread. Fwrite appends at most nitems of data of the type of *ptr beginning at ptr to the named output stream. It returns the number of items actually written. SEE ALSO
read(2), write(2), fopen(3S), getc(3S), putc(3S), gets(3S), puts(3S), printf(3S), scanf(3S) DIAGNOSTICS
Fread and fwrite return 0 upon end of file or error. 4th Berkeley Distribution May 15, 1985 FREAD(3S)
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