Compilare: main.c: In function 'run': main.c:123:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion] mem = (((unsigned int)&real_mem + (64 - 1)) & ~(64 - 1)); // memalign to 64 bytes ^ main.c:112:11: warning: unused variable 'op' [-Wunused-variable] char *s, op; ^~ main.c: In function 'main': main.c:173:6: warning: unused variable 'i' [-Wunused-variable] int i; ^ main.c:172:25: warning: unused variable 'stop' [-Wunused-variable] struct timespec start, stop; ^~~~ main.c:172:18: warning: unused variable 'start' [-Wunused-variable] struct timespec start, stop; ^~~~~ main.c: In function 'run': main.c:164:2: warning: ignoring return value of 'write', declared with attribute warn_unused_result [-Wunused-result] write(fd_out, output, oindex); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~