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diff --git a/doc/html/boost_lexical_cast/frequently_asked_questions.html b/doc/html/boost_lexical_cast/frequently_asked_questions.html index c52e0af64b..83d560ccf1 100755..100644 --- a/doc/html/boost_lexical_cast/frequently_asked_questions.html +++ b/doc/html/boost_lexical_cast/frequently_asked_questions.html @@ -111,10 +111,36 @@ mistake, but a limitation of compiler options that you use. </li></ul></div> </li></ul></div> +<pre class="programlisting"></pre> +<div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"> + <span class="bold"><strong>Question:</strong></span> Why <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">lexical_cast</span><span class="special"><</span><span class="keyword">double</span><span class="special">>(</span><span class="string">"-1.#IND"</span><span class="special">);</span></code> throws <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">bad_lexical_cast</span></code>? + <div class="itemizedlist"><ul class="itemizedlist" type="circle"><li class="listitem"> + <span class="bold"><strong>Answer:</strong></span> <code class="computeroutput"><span class="string">"-1.#IND"</span></code> + is a compiler extension, that violates standard. You shall input + <code class="computeroutput"><span class="string">"-nan"</span></code>, <code class="computeroutput"><span class="string">"nan"</span></code>, <code class="computeroutput"><span class="string">"inf"</span></code> + , <code class="computeroutput"><span class="string">"-inf"</span></code> (case + insensitive) strings to get NaN and Inf values. <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">lexical_cast</span><span class="special"><</span><span class="identifier">string</span><span class="special">></span></code> outputs <code class="computeroutput"><span class="string">"-nan"</span></code>, + <code class="computeroutput"><span class="string">"nan"</span></code>, <code class="computeroutput"><span class="string">"inf"</span></code>, <code class="computeroutput"><span class="string">"-inf"</span></code> + strings, when has NaN or Inf input values. + </li></ul></div> + </li></ul></div> +<pre class="programlisting"></pre> +<div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"> + <span class="bold"><strong>Question:</strong></span> What is the fastest way to convert + a non zero terminated string or a substring using <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">lexical_cast</span></code>? + <div class="itemizedlist"><ul class="itemizedlist" type="circle"><li class="listitem"> + <span class="bold"><strong>Answer:</strong></span> Use <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">iterator_range</span></code> + for conversion. For example, if you whant to convert to <code class="computeroutput"><span class="keyword">int</span></code> two characters from a string + <code class="computeroutput"><span class="identifier">str</span></code>, you shall write + <code class="computeroutput"><span class="identifier">lexacal_cast</span><span class="special"><</span><span class="keyword">int</span><span class="special">>(</span><span class="identifier">make_iterator_range</span><span class="special">(</span><span class="identifier">str</span><span class="special">.</span><span class="identifier">c_str</span><span class="special">(),</span> + <span class="identifier">str</span><span class="special">.</span><span class="identifier">c_str</span><span class="special">()</span> + <span class="special">+</span> <span class="number">2</span><span class="special">));</span></code>. + </li></ul></div> + </li></ul></div> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2000-2005 Kevlin Henney<br>Copyright © 2006-2010 Alexander Nasonov<br>Copyright © 2011 Antony Polukhin<p> +<td align="right"><div class="copyright-footer">Copyright © 2000-2005 Kevlin Henney<br>Copyright © 2006-2010 Alexander Nasonov<br>Copyright © 2011, 2012 Antony Polukhin<p> Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) </p> |