C++ array with wrong input -

so wrote program code read in number of ints, , supposed read array backwards. however, reads 0s

while (true) {     cin >> input;     if (input == -1 && gotstuff == false) {return 0;}     else if (input == -1 && gotstuff == true) {break;}     else     {         inputdata[pos1] = input;         pos1 ++;         gotstuff = true;     } }  (int = pos1; >= 0; i--) {     outputdata[pos2] = inputdata[pos1];     pos2 ++;      cout << outputdata[pos1] << " "; } 

why reading 0s?

you have clear problem here

for (int = pos1; >= 0; i--) {     outputdata[pos2] = inputdata[pos1];     pos2 ++;      cout << outputdata[pos1] << " "; } 

because try print outputdata[pos1] pos1 never changed within loop. therefore output same character. copying same character of inputdata outputdata array when loop exits, outputdata contain same character @ different indices.

you might have better luck following loop @ least copies , prints correct characters

pos2 = 0; (int = pos1-1; >= 0; i--) {     outputdata[pos2] = inputdata[i];     cout << outputdata[pos2] << " ";     pos2++;  } 

you may have other problems code not show in question values of pos1 , pos2 have been initialised with.