exists_and_not_null (public)

exists_and_not_null varname

Defined in packages/acs-tcl/tcl/utilities-procs.tcl

Returns 1 if the variable name exists in the caller's environment and is not the empty string. Note you should enter the variable name, and not the variable value (varname not $varname which will pass variable varnames value into this function).

Parameters:

varname