parameters: (headername)
return_statement: return result
docstring: Make #ifndef identifier that contains uppercase A-Z and digits 0-9
docstring_summary: Make #ifndef identifier that contains uppercase A-Z and digits 0-9
docstring_tokens: Make #ifndef identifier that contains uppercase A - Z and digits 0 - 9
function: def make_identifier(headername):
      '''Make #ifndef identifier that contains uppercase A-Z and digits 0-9'''
      result = ""
      for c in headername.upper():
          if c.isalnum():
              result += c
          else:
              result += '_'
      return result
function_tokens: def make_identifier ( headername ) : result = "" for c in headername . upper ( ) : if c . isalnum ( ) : result += c else : result += '_' return result