Compilare: user.cpp: In function ‘int main()’: user.cpp:61:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%hd",&t); ^ user.cpp: In function ‘char nextch()’: user.cpp:16:30: 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,bSize,f); ^