Compilare: main.cpp: In function 'int main()': main.cpp:122:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("arbsat.out", "w", stdout); ^ main.cpp: In member function 'void inputReader::advance()': main.cpp:17:48: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread( buffer, SIZE, 1, inputFile ); ^ main.cpp: In constructor 'inputReader::inputReader(const char*)': main.cpp:29:44: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread( buffer, SIZE, 1, inputFile ); ^