Compilare: user.cpp: In function ‘int main()’: user.cpp:51:32: 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, Sz, fin ); ^ user.cpp: In function ‘void citeste(int&)’: user.cpp:16:49: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] pos = 0, fread( buffer, 1, Sz, fin ); ^ user.cpp:22:49: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] pos = 0, fread( buffer, 1, Sz, fin ); ^