I have the below code that runs without errors but the problem I am having is that if you enter the wrong number for radius it tells you correctly that it must be $1$ or greater but instead of asking again it moves right to Fill color of the circle instead. If you enter nothing or blank it just goes to another line and doesn't complete. What is wrong with my error checking code?

$//$ Circle.h

#ifndef CIRCLE$\_$H

#define CIRCLE$\_$H

#include

class Circle $\{$

private:

int radius; $//$ Radius of the circle $($must be $1$ or greater$)$

std::string colorFill; $//$ Fill color of the circle $($cannot be blank$)$

public:

$//$ Constructors

Circle$()$; $//$ Zero$-$argument constructor

$//$ Functions

double calcDiameter$()$ const; $//$ Calculate and return the diameter of the circle

double calcArea$()$ const; $//$ Calculate and return the area of the circle

double calcCircumference$()$ const; $//$ Calculate and return the circumference of the circle

void setRadius$($int r$)$; $//$ Set the radius of the circle

int getRadius$()$ const; $//$ Get the radius of the circle

void setColorFill$($const std::string& color$)$; $//$ Set the fill color of the circle

std::string getColorFill$()$ const; $//$ Get the fill color of the circle

$//$ Non$-$class function

void displayCircleInfo$()$ const; $//$ Display the formatted output of the circle information

$\}$;

#endif

$//$ Circle.cpp

#include "Circle.h$"$

#include

#include

const double PI $=3\mathrm{.}14$;

$//$ Constructors

Circle::Circle$()$ : radius$(0),$ colorFill$("")\{\}$

$//$ Functions

double Circle::calcDiameter$()$ const $\{$

return static$\_$cast$($radius$)*2\mathrm{.}0$;

$\}$

double Circle::calcArea$()$ const $\{$

return PI $*$ pow$($static$\_$cast$($radius$),2\mathrm{.}0)$;

$\}$

double Circle::calcCircumference$()$ const $\{$

return $2\mathrm{.}0*$ PI $*$ static$\_$cast$($radius$)$;

$\}$

void Circle::setRadius$($int r$)\{$

if $($r $>=1)\{$

radius $=$ r;

$\}$

else $\{$

std::cerr $<<$ "Error: Radius must be $1$ or greater." $<<$ std::endl;

$\}$

$\}$

int Circle::getRadius$()$ const $\{$

return radius;

$\}$

void Circle::setColorFill$($const std::string& color$)\{$

if $(!$color.empty$())\{$

colorFill $=$ color;

$\}$

else $\{$

std::cerr $<<$ "Error: Fill color cannot be blank." $<<$ std::endl;

$\}$

$\}$

std::string Circle::getColorFill$()$ const $\{$

return colorFill;

$\}$

$//$ Non$-$class function

void Circle::displayCircleInfo$()$ const $\{$

std::cout $<<$ "Circle Information:" $<<$ std::endl;

std::cout $<<$ "Radius: $"<<$ getRadius$()<<$ std::endl;

std::cout $<<$ "Fill Color: $"<<$ getColorFill$()<<$ std::endl;

std::cout $<<$ "Diameter: $"<<$ calcDiameter$()<<$ std::endl;

std::cout $<<$ "Area: $"<<$ calcArea$()<<$ std::endl;

std::cout $<<$ "Circumference: $"<<$ calcCircumference$()<<$ std::endl;

$\}$

$//$ CircleDriver.cpp

#include "Circle.h$"$

#include

#include

void displayCircleInfo$($const Circle& circle$)\{$

std::cout $<<$ std::setw$(15)<<$ std::left $<<$ "Radius:" $<<$ std::setw$(10)<<$ std::left $<<$ circle.getRadius$()<<$ std::endl;

std::cout $<<$ std::setw$(15)<<$ std::left $<<$ "Diameter:" $<<$ std::setw$(10)<<$ std::left $<<$ circle.calcDiameter$()<<$ std::endl;

std::cout $<<$ std::setw$(15)<<$ std::left $<<$ "Area:" $<<$ std::setw$(10)<<$ std::left $<<$ circle.calcArea$()<<$ std::endl;

std::cout $<<$ std::setw$(15)<<$ std::left $<<$ "Circumference:" $<<$ std::setw$(10)<<$ std::left $<<$ circle.calcCircumference$()<<$ std::endl;

std::cout $<<$ std::setw$(15)<<$ std::left $<<$ "Color Fill:" $<<$ std::setw$(10)<<$ std::left $<<$ circle.getColorFill$()<<$ std::endl;

$\}$

int main$()$

$\{$

std::cout $<<$ "Brandon Gauntt $--$ Lab $2-$ Class Creation $"<<$ std::endl;

int radius;

Circle circle;

do $\{$

std::cout $<<$ "Radius of Circle as a positive number $(-1$ to exit$)$: $"$;

std::cin $>>$ radius;

if $($radius $==-1)\{$

break;

$\}$

circle.setRadius$($radius$)$;

std::string color;

std::cout $<<$ "Fill Color of Circle $($blank not allowed$)$: $"$;

std::cin $>>$ color;

circle.setColorFill$($color$)$;

displayCircleInfo$($circle$)$;

$//$ Pause for the user to read the displayed information

system$("$pause$")$;

$\}$ while $($true$)$;

return $0$;

$\}$