comefrom: <qiyuangong>008_String_to_Integer(atoi)_1.py
code: def myAtoi( str):
      sign = 1
      max_int, min_int = 2147483647, -2147483648
      result, pos = 0, 0
      ls = len(str)
      while pos < ls and str[pos] == ' ':
          pos += 1
      if pos < ls and str[pos] == '-':
          sign = -1
          pos += 1
      elif pos < ls and str[pos] == '+':
          pos += 1
      while pos < ls and ord(str[pos]) >= ord('0') and ord(str[pos]) <= ord('9'):
          num = ord(str[pos]) - ord('0')
          if result > max_int / 10 or ( result == max_int / 10 and num >= 8):
              if sign == -1:
                  return min_int
              return max_int
          result = result * 10 + num
          pos += 1
      return sign * result
masked: def sample_funcname ( var_0 ) :
      var_2 = 1
      var_4 , var_6 = 2147483647 , - 2147483648
      var_8 , var_9 = 0 , 0
      var_11 = len ( var_0 )
      while var_9 < var_11 and var_0 [ var_9 ] == ' ' :
          var_9 += 1
      if var_9 < var_11 and var_0 [ var_9 ] == '-' :
          var_2 = - 1
          var_9 += 1
      elif var_9 < var_11 and var_0 [ var_9 ] == '+' :
          var_9 += 1
      while var_9 < var_11 and ord ( var_0 [ var_9 ] ) >= ord ( '0' ) and ord ( var_0 [ var_9 ] ) <= ord ( '9' ) :
          var_18 = ord ( var_0 [ var_9 ] ) - ord ( '0' )
          if var_8 > var_4 / 10 or ( var_8 == var_4 / 10 and var_18 >= 8 ) :
              if var_2 == - 1 :
                  return var_6
              return var_4
          var_8 = var_8 * 10 + var_18
          var_9 += 1
      return var_2 * var_8
  