Declaring and initializing a variable in a Conditional or Control statement in C++

Question

In Stroustrup\'s The C++ Programming Language: Special Edition (3rd Ed), Stroustrup writes that the declaration and initialization of variables in the conditionals

Answer 1

To complement the other folks' good answers, you can always limit the scope of the variable by braces:

{    
  const int readResult = read(socket);
  if(readResult < 0) {
    // handle error
  } 
  else if(readResult > 0)
  {
    // handle input
  } 
  else {
    return true;
  } 
}