### 2.3.2.1 Fixed-Format Lines

In fixed source form, a source line has columns divided into fields for statement labels, continuation indicators, statement text, and sequence numbers. Each column represents a single character.

The column positions for each field follow:

Field | Column
Statement label | 1 through 5
Continuation indicator | 6
Statement | 7 through 72 (or 132 with a compiler option)
Sequence number | 73 through 80

By default, a sequence number or other identifying information can appear in columns 73 through 80 of any fixed-format line in a Compaq Fortran program. The compiler ignores the characters in this field.

If you extend the statement field to position 132, the sequence number field does not exist.

  Note: If you use the sequence number field, do not use tabs anywhere in the source line, or the compiler may interpret the sequence numbers as part of the statement field in your program.

For More Information:

- On the general rules for all source forms, see Section 2.3.
- On the general rules for fixed and tab source forms, see Section 2.3.2.

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