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<H1>iota</H1>
<Table CellPadding=0 CellSpacing=0 width=100%>
<TR>
<TD Align=left><Img src = "algorithms.gif" Alt="" WIDTH = "194" HEIGHT = "38" ></TD>
<TD Align=right><Img src = "function.gif" Alt="" WIDTH = "194" HEIGHT = "38" ></TD>
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<TR>
<TD Align=left VAlign=top><b>Category</b>: algorithms</TD>
<TD Align=right VAlign=top><b>Component type</b>: function</TD>
</TR>
</Table>
<h3>Prototype</h3>
<pre>
template <class ForwardIterator, class T>
void iota(ForwardIterator first, ForwardIterator last, T value);
</pre>
<h3>Description</h3>
<tt>Iota</tt> assigns sequentially increasing values to a range. That is,
it assigns <tt>value</tt> to <tt>*first</tt>, <tt>value + 1</tt> to <tt>*(first + 1)</tt>
and so on. In general, each iterator <tt>i</tt> in the range <tt>[first, last)</tt>
is assigned <tt>value + (i - first)</tt>. <A href="#1">[1]</A>
<h3>Definition</h3>
Defined in <A href="algo.h">algo.h</A>.
<h3>Requirements on types</h3>
<UL>
<LI>
<tt>ForwardIterator</tt> is a model of <A href="ForwardIterator.html">Forward Iterator</A>.
<LI>
<tt>ForwardIterator</tt> is mutable.
<LI>
<tt>T</tt> is <A href="Assignable.html">Assignable</A>.
<LI>
If <tt>x</tt> is an object of type <tt>T</tt>, then <tt>x++</tt> is defined.
<LI>
<tt>T</tt> is convertible to <tt>ForwardIterator</tt>'s value type.
</UL>
<h3>Preconditions</h3>
<UL>
<LI>
<tt>[first, last)</tt> is a valid range.
</UL>
<h3>Complexity</h3>
Linear. Exactly <tt>last - first</tt> assignments.
<h3>Example</h3>
<pre>
int main()
{
vector<int> V(10);
iota(V.begin(), V.end(), 7);
copy(V.begin(), V.end(), ostream_iterator<int>(cout, " "));
cout << endl;
}
</pre>
<h3>Notes</h3>
<P><A name="1">[1]</A>
The name <tt>iota</tt> is taken from the programming language APL.
<h3>See also</h3>
<tt><A href="fill.html">fill</A></tt>, <tt><A href="generate.html" tppabs="http://www.sgi.com/Technology/STL/generate.shtml">generate</A></tt>, <tt><A href="partial_sum.html" tppabs="http://www.sgi.com/Technology/STL/partial_sum.shtml">partial_sum</A></tt>
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