Inserting

are there any open/write functions for C , which do not overwrite chars in a file , but insert them ?

or do i have to write a shitty loop that just reads , stores and writes a char ?

also discuss file and string handling libraries because most that i have seen suck .

>>2
its just pissing me off that there is no builtin functionalty for this . small shit like this is easy to implement but it still should be part of the standard library i think .

also , i assume C++ streams work almost the same ?