Compilare: user.cpp: In function ‘void goto_next1(char, int&)’: user.cpp:12:25: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while(x = getc(stdin)) ^ user.cpp: In function ‘void goto_next2(char, int&)’: user.cpp:23:25: 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:37:26: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while (x = getc(stdin)) ^ user.cpp: In function ‘void read_value2(char*, char)’: user.cpp:52:26: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while (x = getc(stdin)) ^ user.cpp:62:29: 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:82:40: 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:83:42: 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:101:40: 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); ^