What is a goto statement in c

The goto statement allows us to transfer control of the program to the specified label.

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Syntax of goto Statement

goto label;
... .. ...
... .. ...
label: 
statement;

The label is an identifier. When the goto statement is encountered, the control of the program jumps to label: and starts executing the code.

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Example: goto Statement

// Program to calculate the sum and average of positive numbers 
// If the user enters a negative number, the sum and average are displayed.

# include <stdio.h>

int main()
{

    const int maxInput = 5;
    int i;
    double number, average, sum=0.0;
    
    for(i=1; i<=maxInput; ++i)
    {
        printf("%d. Enter a number: ", i);
        scanf("%lf",&number);

        if(number < 0.0)
            goto jump;

        sum += number;
    }

    jump:
    average=sum/(i-1);
    printf("Sum = %.2f\n", sum);
    printf("Average = %.2f", average);

    return 0;
}

Output

1. Enter a number: 3
2. Enter a number: 4.3
3. Enter a number: 9.3
4. Enter a number: -2.9
Sum = 16.60