[C] append file

[magicofred]

come posso scrivere in append un file? cioè.. se esiste scrivo in append, altirmenti devo crearlo.

[oregon]

FILE * fopen ( const char * filename, const char * mode );

mode
"a" Append to a file. Writing operations append data at the end of the file. The file is created if it does not exist.

http://www.cplusplus.com/reference/c...dio/fopen.html