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  1. PO
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    <p>It depends largely on the semantics of those <code>int</code>s. If they're descrete values (say the results of throwing 1000&ndahs;10000 ten sided dice), then something like:</p> <pre><code>std::ostream&amp; operator&lt;&lt;( std::ostream&amp; dest, std::vector&lt;int&gt; const&amp; source ) { dest &lt;&lt; '['; for ( std::vector&lt;int&gt;::const_iterator current = source.begin(); current != source.end(); ++ current ) { if ( current != source.begin() ) { dest &lt;&lt; ", "; } dest &lt;&lt; *current; } dest &lt;&lt; ']'; return dest; } </code></pre> <p>might do the trick; more likely, you'd want to pick up <code>dest.width()</code>, and set it before the output of each int (or treat it as the total width, and work out how much padding you need per <code>int</code>, and set that before outputting each int), and you also might want to insert line breaks.</p> <p>If, on the other hand, your vector is a single number in base 10, with one digit per <code>int</code> (in which case, I'd recommend using <code>char</code>, rather than int), you want something like:</p> <pre><code>std::ostream&amp; operator&lt;&lt;( std::ostream&amp; dest, std::vector&lt;int&gt; const&amp; source ) { std::vector&lt;int&gt;::const_reverse_iterator current = std::find_if( source.rbegin(), source.rend(), boost::bind( std::not_equal_to&lt;int&gt;(), _1, 0 ) ); if ( current == source.rend() ) { dest &lt;&lt; '0'; } else { while ( current != source.rend() ) { dest &lt;&lt; *current + '0'; ++ current; } } return dest; } </code></pre> <p>(This is for a little endian representation; for bigendian, replace the reverse iterators with normal iterators.)</p> <p>Again, you'll probably want to handle <code>width()</code> and <code>fill()</code>; handling the base would be significantly more difficult.</p>
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    1. POc++ int[] to string
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    1. USJames Kanze
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    1. COi am just beginner, there's so much new things for me in your code. i have found the simplier solution in first answer. maybe your solution is better and faster, i don't know, but for know i think i am ok with that char c = someInt+'0';. anyway thanks very much, i will take a look on it when i will be experienced enough to understand it :)
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      1. USuser1145902
    2. CO@user1145902 My code uses the `someint + '0'` for the individual ints. What it does in addition is address the issues of formatting; just a sequence of integers isn't (usually) very useful.
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      1. USJames Kanze
    3. COThis answer also includes the boost library in a sneaky fashion. *hisses*
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