Compilare: user.cpp: In function ‘int bs(int)’: user.cpp:96:9: warning: variable ‘pos’ set but not used [-Wunused-but-set-variable] int pos = -1; ^ user.cpp: In function ‘int main()’: user.cpp:116:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("costuri.out","w",stdout); ^ user.cpp: In member function ‘char InParser::read_ch()’: user.cpp:19:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^