Compilare: user.c: In function ‘main’: user.c:123:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &nr_teste); ^~~~~~~~~~~~~~~~~~~~~~~~~~ user.c:125:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%s", carte); ^~~~~~~~~~~~~~~~~~~~~~ user.c:126:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &nr_cv); ^~~~~~~~~~~~~~~~~~~~~~~ user.c:129:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%s", s); ^~~~~~~~~~~~~~~~~~