Compilare: user.cpp: In function ‘int main()’: user.cpp:189:24: warning: statement has no effect [-Wunused-value] for (in; in <= stop; ++in) ^ user.cpp: In function ‘void readSize(int&)’: user.cpp:22:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in_file, "%d", &arraySize); ^ user.cpp: In function ‘int main()’: user.cpp:38:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in_file, "%d", &x); ^ user.cpp:43:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in_file, "%d %d", &x, &y); ^ user.cpp:56:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in_file, "%d %d", &x, &y); ^ user.cpp:66:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in_file, "%d", &x); ^