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Probably my English is bad or I could not communicate well.
Yes! I agree, I don't even know the basics of C, sorry for troubling you guys.

I have a little knowledge about file operations and...

Quote:
Originally Posted by c99
7.19.4.1 The remove function




But how do I truncate the file? How I delete the selected lines of a file?

Thanks in advance.

Could you please explain me how do these f-ing functions help access the disk,
especially the sectors or data blocks. In other words, how can I store the tree elements in the file which will allow...

Hi Citizen,




Could you please help me write the function which will delete the contents of a file.

Thanks in advance.

Thanks Desolation for your suggestion.

Do we have any other solutions apart from renaming the files?

Thanks in advance.

Thanks a lot for your suggestions vart ,andor & quzah !

I am looking for a function or system call with which we can delete the file contents.
Please let me know your suggestions on this.

Thanks in advance.

Thanks for your info Salem & iMalc !

I would like to store the trees containing the data (customer records) on the disk, so that I can retrieve them when ever I need with better performance than...

How do I add one more argument to an existing function which is called by other functions from various modules of the project?
I would like to add this new argument without or minimum risk. Is there...

Thanks a lot for your info, Salem!

Is there a way to write our own file system to manage the data?

Thanks in advance.

Try implementing a solution; we will help you if you have any questions.

I guess, you know what the prime number is.

Cheers

I would like to create tree structures to store the data on disk. I wonder if I can use files to store them. Is there any way that I can access the disk block/sectors? so that, I can maintain my own...

Hi All,

I would like to delete the specific lines in a file programmatically, is there any way I can do that? Similar to the one we do it in notepad i.e. as soon as we delete a line the line below...

Great idea ! I need to improve my thinking.

Thanks a lot

There is a problem in opening the link.

Hi All,

I would like to swap the contents of two large files without using any temporary file. However, a buffer can be used instead of temporary file. I could swap the file contents, but have a...

Hi All,

Could anyone tell me the difference between memory allocation scheme used by malloc and realloc. I would like to know how realloc reasssigns the memory to a pointer variable. In other...