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<a name="RATFOR-syntax"></a>
<h3 class="section">9.1 <small>RATFOR</small> syntax</h3>
<p>A sample <small>RATFOR</small> program is
</p>
<div class="example">
<pre class="example">@r
@
@a
program main
{
integer k;
real fcn, x;
for(k=0; k<10; k++)
{
x = fcn(k);
if(x < 0.0)
{
x = 0.0;
break;
}
}
}
</pre></div>
<p>The concluding brace of a function is translated into an <b>END</b>
statement. Note the use of semicolons to terminate statements, braces
to delimit compound statements, ‘<samp><</samp>’ instead of ‘<samp>.LT.</samp>’, the
C-like <b>for</b> construction, and the ‘<samp>k++</samp>’ expression.
</p>
<p>Constructions like ‘<samp>k++</samp>’ or ‘<samp>k -= l + 1</samp>’ must be used with
great care. They translate to statements involving ‘<samp>=</samp>’ signs, so they
can be used only where simple statements are allowed, not essentially
anywhere as in C (for example, they cannot be used as function
arguments).
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