Compilare: user.cpp: In function ‘void goto_next(char, int&, char)’: user.cpp:11:26: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while (x = getc(stdin)) ^ user.cpp: In function ‘void read_value1(char*, char)’: user.cpp:23:26: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while (x = getc(stdin)) ^ user.cpp: In function ‘void read_value2(char*, char, int&)’: user.cpp:37:26: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while (x = getc(stdin)) ^ user.cpp:47:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", aux); ^ user.cpp: In function ‘int main()’: user.cpp:71:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("convertor.in", "r", stdin); ^ user.cpp:72:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("convertor.out", "w", stdout); ^ user.cpp:90:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("convertor.in", "r", stdin); ^