Queue/Usage: Difference between revisions
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</pre>
=={{header|Yabasic}}==
<lang Yabasic>stack$ = ""
sub push(x$)
stack$ = stack$ + x$ + "#"
end sub
sub pop$()
local i, r$
if stack$ <> "" then
i = instr(stack$, "#")
if i then
r$ = left$(stack$, i-1)
stack$ = right$(stack$, len(stack$) - i)
else
r$ = stack$
stack$ = ""
end if
return r$
else
print "--Queue is empty--"
end if
end sub
sub empty()
return stack$ = ""
end sub
// ======== test ========
for n = 3 to 5
print "Push ", n : push(str$(n))
next
print "Pop ", pop$()
print "Push ", 6 : push(str$(6))
while(not empty())
print "Pop ", pop$()
wend
print "Pop ", pop$()</lang>
{{out}}
<pre>Push 3
Push 4
Push 5
Pop 3
Push 6
Pop 4
Pop 5
Pop 6
Pop --Queue is empty--</pre>
=={{header|zkl}}==
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