Compilare: user.c: In function ‘main’: user.c:18:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin1, "%c", &c); ^ user.c:66:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin , "%c" , &c); ^ user.c:102:24: warning: ‘stage’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if(stage == 2 && c != '"') ^ user.c:39:24: warning: ‘stage1’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if(stage1 == 2 && c != '"') ^