[R] How to terminate R program if found any execution error

[arunkumar1111]

Hi

  I want to terminate R process if there are any execution error. 

a="a"
b=10
c=try(a/b)

if(class(c)[1]=="try-error")
{
       stop("Wrong Input Value")
}

d=c*c



if c fails then it should terminate the process. 
Please can anyone help

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