Reading from a variable length file

[cbeganesh]

does anybody have any examples of reading from a variable length file using fread, Im using something like this
fread(&sInputRec, Len,1, fpInput);
but the problem is i dont know the length for each record.
Thanks

 

[TrojanWarBlade]

Surely there must be some way of detecting the length of each record. A length prefix maybe? A record terminator?


Trojan.

 

[Salem]

Put another way, if you don't know the length, how are you going to process the data?


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[columb]

I'm assuming that the records ahve some sort of delimiter
Option 1
Read the whole file into a buffer. i.e.
stat the file
malloc of enogh memory
read in the file
use something like strtok to break up the file into records.

Option 2
Create a buffer big enough to handle the biggest record. Read in the file byte at a time int the buffer until the delimiter is met.

The exact implementation is left as an excercise!

Columb Healy