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function stackelement = AST_PopASTStack()
// function stackelement = AST_PopASTStack()
// -----------------------------------------------------------------
// Pop the AST stack.
//
// Input data:
// ---
//
// Output data:
// //NUT: add description here
//
// Status:
// 11-Aug-2007 -- Raffaele Nutricato: Author.
//
// Copyright 2007 Raffaele Nutricato.
// Contact: raffaele.nutricato@tiscali.it
// -----------------------------------------------------------------
// ------------------------------
// --- Check input arguments. ---
// ------------------------------
SCI2CNInArgCheck(argn(2),0,0);
global SCI2CSTACK;
global StackPosition;
global STACKDEDUG;
if StackPosition == 1
error(9999, 'Stack empty. Cannot pop from stack.');
end
stackelement = SCI2CSTACK(StackPosition,1);
SCI2CSTACK = SCI2CSTACK(1:StackPosition-1);
StackPosition = StackPosition - 1;
if (STACKDEDUG == 1)
AST_DisplayStack();
end
endfunction
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