If count is greater than SSIZE_MAX, the result is unspecified.RETURN VALUEOn success, the number of bytes read is returned (zero indicates end of file), and the file position is advanced by this number. It is not an error if this number is smaller than the number of bytes requested. . . .
So put the corn in the oven however you choose to, and set the timer for 30 minutes. Oh how I love the smell of the corn cooking this way. A real roasted smell. After 30 minutes, remove the corn from the oven.
Nuke each cob for three to four minutes. You can stick a couple of cobs in at once, but be sure to increase the cook time accordingly. (If you put in two cobs, microwave for six to eight minutes.) Once it's cooked, remove the corn with gloves or oven mitts -- it's going to be hot.