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: In function ‘main’: user.c:7: error: ‘ifstream’ 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:7: error: expected ‘;’ before ‘f’ user.c:8: error: ‘ofstream’ undeclared (first use in this function) user.c:8: error: expected ‘;’ before ‘g’ user.c:9: error: ‘f’ undeclared (first use in this function) user.c:10: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:10: note: use option -std=c99 or -std=gnu99 to compile your code user.c:13: error: redefinition of ‘i’ user.c:10: note: previous definition of ‘i’ was here user.c:13: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:15: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:20: error: redefinition of ‘i’ user.c:13: note: previous definition of ‘i’ was here user.c:20: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:26: error: redefinition of ‘i’ user.c:20: note: previous definition of ‘i’ was here user.c:26: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:35: error: ‘g’ undeclared (first use in this function)