How to concatenate a string at the end of another string after using getch

Question

For this code:

#include <iostream>
#include <string>
#include <conio.h>

int main()
{
    std::string a;
    char c{};
    while (c != '\r')
    {
        c = getch();
        a += c;
    }
    a += "xyz";
    std::cout << a;
}

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Input: 12345, then Enter key

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Output: xyz45

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How do I stop this from happening?

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Desired output: 12345xyz

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Answer 1

You need to avoid adding \r character to the string, something like:

while ((c = getch()) != '\r')
    a += c;