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ud_sym(name) user symbol access
Return the user defined variable with name equal to the string of the
function parameter, "name".
ud_sym(n,name) user symbol access
Return the user defined variable with position in the symbol table
equal to the integer value of n. Variable name returned in variable
"name". For this form "name" MUST be a variable. Position in the
symbol table is dependent on order in which variable defined in
utility. If the integer value of n is zero, negative or greater than
number of user variables defined, the null string is returned.
The functional return value may be used in any expression just as the
variable itself would. This includes operating on the return value
with the array index operators, "[]".
NOTE: form 2 of "ud_sym" limited to accessing global variables only.
Local variables, i.e., variables declared with "local" keyword or
function parameters, may be accessed via form 1.
See Also:
pd_sym
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