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<title>C statements and blocks</title>
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<h1>C Statements and blocks.</h1>
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<hr>
<h2>Statements</h2>
C has three types of statement.
<ul>
<li>assignment
<pre>
=
</pre>
<li>selection (branching)
<pre>
<a href="../EXAMPLES/if.c">if</a> (expression)
else
switch
</pre>
<li>iteration (looping)
<pre>
<a href="while.html">while</a> (expression)
<a href="for.html">for</a> (expression;expression;expression)
<a href="do.html">do</a> {block}
</pre>
</ul>
<a name=block>
<h2>Blocks</h2>
</ul>
These statements are grouped into <i>blocks</i>, a block is identified by
curly brackets...There are two types of block.
<ul>
<li>statement blocks
<pre>
if ( i == j)
{
printf("martin \n");
}
</pre>
The <i>statement block</i> containing the <b>printf</b> is only executed
if the <b>i == j</b>
<i>expression</i> evaluates to <a href="../CONCEPT/true_false.html">TRUE</a>.<p>
<li>function blocks
<pre>
int add( int a, int b) /* Function definition */
{
int c;
c = a + b;
return c;
}
</pre>
The statements in this block will only be executed if the <i> add </i> function
is called. <a href="../EXAMPLES/function.c">Complete function example</a>
</ul>
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<address>Martin Leslie
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