Object type that identifies a stream and contains the information needed to control it, including a pointer to its buffer, its position indicator and all its state indicators. FILE objects are usually created by a call to either fopen or tmpfile, which both return a pointer to one of these objects.
First-Class Mail is a USPS trademark. The minimum size for First-Class Mail is 5 inches long, 3-1/2 inches high and 0.007 inches thick. The maximum size is 11-1/2 inches long, 6-1/8 inches high, and .75 inches thick. The maximum weight for letters is 3.5 ounces.irst-Class Mail International is a USPS trademark. Note: The cost of postage will appear on all international shipping labels. Maximum weight for letters is 3.5 ounces. Maximum weight for large envelopes is 4 pounds.
Full Answer. The USPS dictates size standards for mail in the United States based on the requirements of its automatic mail-sorting equipment. The minimum postcard size is 3.5 inches by 5 inches. The maximum postcard size is 4.25 inches by 6 inches. The USPS also requires the postcard be between 0.007 inch and 0.016 inch thick.