breaking a big file into smaller files

[harish13]

i want to break a large file into smaller files each of size 2KB.i want to give the file names as 1.txt,2.txt,3.txt etc how can i do this

[Wraithan]

read in some of the file... then write out to a file... then read in more of the file... and write more... till you are done reading.

[harish13]

problem is how to name the files i have an index variable i want to create the files with the name as that of the contents of index variable

[cbastard]

variable i=1;
char tempname[6];
read base file till end
read 2kb from file
tempname=strcat(inttostring(i)+".txt");
write to new file fopen(tempname,"w");
i++;
end read

[Salem]

I do wish you would stick to one board for your questions
http://forums.devshed.com/c-programm...ng-370788.html

Fair enough asking on another board if one doesn't respond in a day or two, but to broadcast all over the place just makes it seem like you're trying to post "urgent" without actually saying so.

[whiteflags]

My suggestion is to use sprintf to generate a new filename.

int index = 1; /* this would be your index variable you were talking about */
char filename[256];
sprintf(filename, "%d%s", index, ".txt");

Note that snprintf and a dynamically allocated character array might be a better solution since snprintf returns the characters it would have printed if it had to truncate the buffer. Thus you can use it to size the string correctly, but I didn't want to drag dynamic memory into this.

[edit]Oh neat... cross-posting.