Eroare de compilare: user.c:1:21: fstream.h: No such file or directory user.c: In function `main': user.c:4: error: `fstream' undeclared (first use in this function) user.c:4: error: (Each undeclared identifier is reported only once user.c:4: error: for each function it appears in.) user.c:4: error: syntax error before "f" user.c:6: error: `f' undeclared (first use in this function) user.c:13: error: `g' undeclared (first use in this function) user.c:15:2: warning: no newline at end of file