NET/MASTER Network Control Language (NCL) Reference Manual

FUNCTION

Core Statements

2–20 106126 Tandem Computers Incorporated

label

specifies the function. You must specify at least one label for a function. If this is

an external function definition (the FUNCTION statement is the first statement in

the file), NCL treats the label(s) attached to this function as extra, internal labels

for the function. These labels are visible only to statements within the same source

file.

The external name of an external function is the name of the containing source file.

label

can have any valid symbol value. It must be unique within the scope of the

function definition. This includes all functions or procedures directly under the

same parent function or procedure.

See Section 8, “Compiler Operation,” for the definition of valid NCL labels.

specifies whether the current variable-sharing status is to be overridden for this

function call and whether variable sharing is to be enabled. If this operand is not

specified, NCL uses the setting of the [NO]SHRVARS operand of the CONTROL

verb.

share-list

specifies one or more variables that are to be shared, or not shared, with the

function. The CALLER keyword can be part of the list. The terms must be

separated by commas.

element

specifies a variable type or the CALLER keyword.

specifies any variable type that can be shared, in which * can be any

combination of characters that can legitimately form a variable name.

simple-variable

[*]

specifies a simple variable, in which * can be any combination of

characters that can legitimately form a variable name.

stem-variable

.[*]

specifies a stem variable, in which * can be any combination of

characters that can legitimately form a variable name.

CALLER

specifies that the list of variables currently specified in the calling

environment replaces this keyword.