Numbers in an array to int

gistfile1.txt

for(int i=0; i<valLen; i++) {
     valResult += (val[(valLen-1)-i] - '0')*pow(10, i);
     if(DEBUG) Serial << i << ": " << val[(valLen-1)-i] << " " << (val[(valLen-1)-i] - '0') << " " << pow(10, i) << "=" << (val[(valLen-1)-i] - '0')*pow(10, i) << endl;
 }
 
 /*  
 if(valLen > 3) {
   valResult += (val[0] - '0')*1000;
   valResult += (val[1] - '0')*100;
   valResult += (val[2] - '0')*10;
   valResult += (val[3] - '0')*1;
 } else if(valLen > 2) {
   valResult += (val[0] - '0')*100;
   valResult += (val[1] - '0')*10;
   valResult += (val[2] - '0')*1;
 } else if(valLen > 1) {
   valResult += (val[0] - '0')*10;
   valResult += (val[1] - '0')*1;
 } else {
   valResult += (val[0] - '0')*1;
 }
 */
 
 if(DEBUG) Serial << "Result: " << (int)valResult << endl;
 
 // do something with result