Call to errorMessage() with error code -12 in collectCustomerProperties if the user enters too many digits for the account balance.

src/createCustomer.c

@@ -77,18 +77,16 @@ void collectCustomerProperties()
 	printf("Enter balance (max. 10 digits):\n");
 	char *balanceCharacters = calloc(10+1+1+1,sizeof(char));
 	letterMaximum = 10;
-	while(letterCounter<letterMaximum && (userInput=getchar())!='\n'){
+	while(letterCounter<=letterMaximum && (userInput=getchar())!='\n'){
 		*(balanceCharacters+letterCounter) = userInput;
 		++letterCounter;
-		if(letterCounter>=letterMaximum){
+		if(letterCounter>letterMaximum){
 			inputTooLong = true;
 			break;
 		}
 	}
 	if(inputTooLong){
-		puts("Input too long.");
-		exit(-1);
-		//call errorMessage(-10);	
+		errorMessage(-12);	
 	}else{
 		if(!foundComma){
 			*(balanceCharacters+letterCounter) = '.';

src/error.c

@@ -55,6 +55,11 @@ int errorMessage(int errorCode)
 		returnValue = -11;
 		exit(-1);
 		break;
+	case -12:
+		puts("You entered too many digits.");
+		returnValue = -12;
+		exit(-1);
+		break;
 	default:
 		puts("Error code unknown.");
 	}