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I am writing an array of 200 structures to a file, using
frwite(&parts,sizeof (parts[0]),200,mydata);
And I want to add to the end of the file, an integer that represents the amount of structures that contain data. How can I append the end of the file with this integer?
Same again, only different
int myint = 200;
fwrite(&myint,sizeof (myint),1,mydata);
And this,
frwite(&parts,sizeof (parts[0]),200,mydata);
Should be this
size_t nwrite = fwrite(parts,sizeof (parts[0]),200,mydata);
1) Whilst its an array, parts and &parts are pretty much the same thing, but if you decide to dynamically allocate parts, then &parts would be very wrong
2) check nwrite is 200 when you're done - if it isn't, then there's a problem writing the file