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.
Place one to three ears of corn in your microwave oven; leave the husk on the ears of course. Actual microwave times vary depending on how big and how hot yours is, but a general rule of thumb is to cook one ear on high for about three minutes, pausing once at about 90 seconds to turn the corn over.