Eroare de compilare: user.c:1:21: error: ifstream.h: No such file or directory user.c:2: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fi' user.c:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fo' user.c: In function 'main': user.c:7: error: 'fi' undeclared (first use in this function) user.c:7: error: (Each undeclared identifier is reported only once user.c:7: error: for each function it appears in.) user.c:8: error: 'fo' undeclared (first use in this function)