FORTRAN Reference Manual

Program Compilation

FORTRAN Reference Manual—528615-001

9-12

Source Listing

The compiler inserts a line that identifies the source input file being read when it begins

to read a different source file defined by a SOURCE directive and when it finishes

reading the source file.

The format of the inserted print line image is:

Source file: [n] file-name yyyy-mm-dd hh:mm:ss

where:

[n]

is the file ordinal (same as in the listing page title),

file-name

is the fully qualified source file name

yyyy-mm-dd hh:mm:ss

is the date and time file-name was last modified.

The compiler prints error messages and warning messages in the output listing. Note,

however, that error messages are associated with FORTRAN statements, not lines.

Because of the FORTRAN continuation line convention, it is impossible for the

compiler to know that it has seen the last line of a statement until it sees the first line of

the next statement: the compiler accumulates the entire statement before it parses the

line. Therefore, an error or warning message in the source listing could refer to any

item in the preceding statement (including comment lines and blank lines) and is not

restricted to the physical preceding line.

If FORTRAN detects a syntax error and you use the NOLIST or SUPPRESS directives

to disable listing, FORTRAN displays the text of the last line it read, its EDIT line

number, and the ordinal of the file from which the line was read before it writes the

error message. However, as noted in the preceding paragraph, the error or warning

message refers to the entire last statement, not just to the last line whose text it

displays.

If the MAP, CODE, or ICODE option is in effect, the specified list items follow each

program unit. The MAP output for each program unit is in two parts: the code and