Can I use a variable to name other variables?

The language like 'c' allows the use of same name for two different variables Is it possible for lexical analyser to distinguish between such variables?

• Answer:

  Using the same name for two different variables in languages like C is possible only within two different scopes, such as outside a block and inside a block... int somevariable; /* outside scope */ { ... int somevariable; /* inside scope */ } In order for a lexical analyzer to distinguish those two variables, it must be able to parse the program and resolve scope the same way the compiler does.