Eroare de compilare: user.cpp: In function ‘long int fetchAdd(volatile long int*, long int)’: user.cpp:274:10: error: ‘original’ was not declared in this scope : "=r"(original), "+m"(*value) ^ user.cpp:279:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:429:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.cpp:434:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%llu%llu", &op, &c); ^