27.5.4.1 Understanding control-structure elements

The names of control-structure elements look almost identical to macro names. Avoid defining any macro of your own that has the same name as one of the control-structure elements listed in Table 27-6; the Mif2Go control-structure definition takes precedence.

Table 27-6 Predefined control-structure elements

Control element	Where used	Purpose	Ref.
<$_break>	Loop structure	Skip to the end of a loop	27.5.4.3
<$_continue>	Loop structure	Jump back to the start of the next iteration	27.5.4.3
<$_else>	Conditional expression	Introduce a final alternate condition	27.5.4.2
<$_elseif>	Conditional expression	Introduce an intermediate alternate condition	27.5.4.2
<$_endif>	Conditional expression	End a conditional expression	27.5.4.2
<$_endrepeat>	Loop structure	End a count-down loop	27.5.4.3
<$_endwhile>	Loop structure	End a logical loop	27.5.4.3
<$_if>, <$_if not>	Conditional expression	Begin a conditional expression	27.5.4.2
<$_repeat>	Loop structure	Begin a count-down loop	27.5.4.3
<$_until>	Loop structure	Begin a logical loop	27.5.4.3
<$_while>	Loop structure	Begin a logical loop	27.5.4.3

> 27 Working with Mif2Go macros > 27.5 Using expressions in macros > 27.5.4 Using control structures in expressions > 27.5.4.1 Understanding control-structure elements

27.5.4 Using control structures in expressions

27.5.4.2 Using conditional expressions