Octal and Hex Input      

A READ, with the O or Z field descriptors in the FORMAT, reads in w characters as octal or hexadecimal, respectively, and assigns the value to the corresponding member of the I/O list.

Example: Octal input, the external data field is:

---

654321 

---

The first digit in the example appears in input column 1.

The program that does the input is:

---

	READ ( *, 2 ) M 
2	FORMAT ( O6 ) 

---

The above data and program result in the octal value 654321 being loaded into the variable M. Further examples are included in the following table.

Table 5-6 Sample Octal/Hex Input Values

Format	External Field	Internal (Octal or Hex) Value
O4 O4 O3	1234¤ 16234 97¤¤¤	1234 1623 Error: "9" not allowed
Z5 Z5 Z4	A23DE¤ A23DEF 95.AF2	A23DE A23DE Error: "." not allowed

The general rules for octal and hex input are:

• For octal values, the external field can contain only numerals 0 through 7.

• For hexadecimal values, the external field can contain only numerals 0 through 9 and the letters A through F or a through f.

• Signs, decimal points, and exponent fields are not allowed.

• All-blank fields are treated as having a value of zero.

• If a data item is too big for the corresponding variable, an error message is displayed.