Main()
{
int i =0;
...
...
while(true)
{
int k =0;
...
...
}
// K is out of scope..
}
How does the compiler know K is out of scope?
Main() { int i =0; … … while(true) { int k =0; … …
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Main()
{
int i =0;
...
...
while(true)
{
int k =0;
...
...
}
// K is out of scope..
}
How does the compiler know K is out of scope?
Because as the compiler processes the code it maintains information about each identifier it comes across and each scope it comes across and maintains boundaries for the latter. It knows that K was declared in the while scope and after the scope ends it probably marks the variable as ‘no longer in scope’ causing any use to be marked as an error.