4. Let x and y be type float, m and n type int, ch1 and ch2 type char, and str type string. Show the final contents of each variable affected by the input operations below. Indicate any errors that might occur when the statements in each part execute. Assume that the input stream pointer is reset to the first input character before each part executes. 345.27 50 40 a. ins >> x >> y >> ch1 >> ch2 >> str; ins >> x >> m >> n;

Part d: float check string has a method s.isdigit() that returns true if string s contains only digits and false otherwise, i.e. s is a string that represents an integer. write a function named float_check that takes one parameter that is a string and returns true if the string represents a float and false otherwise. for the purpose of this function we define a float to be a string of digits that has at most one decimal point. note that under this definition an integer argument will return true. remember “edge cases” such as “45.” or “.45”; both should return true. for example: float_check('1234') returns true float_check('123.45') returns true float_check('123.45.67') returns false float_check('34e46') returns false float_check('.45') returns true float_check('45.') returns true float_check('45..') returns false