FORTRAN Reference Manual

Utility Routines
FORTRAN Reference Manual—528615-001
15-24
Types of SMU Routines
Each saved ASSIGN message is given a unique, serially assigned message number.
This number is a positive integer from one to the greatest number of saved ASSIGN
messages. It is used to specifically identify each saved ASSIGN message.
SMU routines operate on specific portions of saved messages. Each portion is
identified by a special string value. You must pass the string value as the portion
parameter to the appropriate routine. Case is not significant in specifying string values,
but you must observe the following restrictions:
•
The string cannot be preceded by blanks.
•
The string must be followed by a blank when the portion parameter length exceeds
the string value length.
•
The string value must be enclosed in single quotes.
For the content of message portions, see Saved Messages on page 15-26.
Types of SMU Routines
There are three types of SMU routines: those that obtain environment information for a
process, those that change environment values, and those that delete stored
environment values.
Getting Environment Information
To obtain environment information, you must use the SMU routines whose names
begin with GET. Table 15-3 on page 15-25 describes these routines.