azeval.cpp: In function 'void evaluare()': azeval.cpp:41: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result azeval.cpp: In function 'int main()': azeval.cpp:140: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result azeval.cpp:141: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result azeval.cpp: In function 'void evaluare()': azeval.cpp:40: warning: 'aux' may be used uninitialized in this function /tmp/ccceb7Tx.o: In function `evaluare()': azeval.cpp:(.text+0x44e): warning: the `gets' function is dangerous and should not be used.