# 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 compiler option extend-source)
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 an Intel® 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.

Parent topic: Fixed and Tab Source Forms

## See Also

Source Forms
Fixed and Tab Source Forms
extend-source compiler option