Eroare de compilare: user.c:1:19: error: fstream: No such file or directory user.c:2: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘namespace’ user.c:7: error: expected specifier-qualifier-list before ‘nod’ user.c:12: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘viz’ user.c:15: error: expected ‘;’, ‘,’ or ‘)’ before ‘&’ token user.c: In function ‘read’: user.c:25: error: ‘ifstream’ undeclared (first use in this function) user.c:25: error: (Each undeclared identifier is reported only once user.c:25: error: for each function it appears in.) user.c:25: error: expected ‘;’ before ‘f’ user.c:27: error: ‘f’ undeclared (first use in this function) user.c:31: warning: implicit declaration of function ‘add’ user.c: At top level: user.c:34: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘bf’ user.c: In function ‘main’: user.c:64: error: ‘ofstream’ undeclared (first use in this function) user.c:64: error: expected ‘;’ before ‘g’ user.c:65: warning: implicit declaration of function ‘bf’ user.c:66: error: ‘g’ undeclared (first use in this function) user.c:67: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:67: note: use option -std=c99 or -std=gnu99 to compile your code