Compilare: user.cpp: In member function ‘void inputReader::getBuffer()’: user.cpp:31:43: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, 1, bufferDim, stdin); ^ user.cpp: In function ‘int getRoot()’: user.cpp:89:1: warning: control reaches end of non-void function [-Wreturn-type] } ^