Header section
The listing file
has a header
section that contains the following
items:
- A compiler identifier that consists
of the following elements:
- Compiler name
- Version number
- Release number
- Modification number
- Fix number
- Source file name
- Date of compilation
- Time of compilation
The header section is always present in a listing; it is the first line and appears only once. The following sections are repeated for each compilation unit when more than one compilation unit is present.


