feedc0de/boost_conversion
1
0
Fork 0
forked from boostorg/conversion
Code Pull Requests Activity

merged from trunk

Browse Source 
[SVN r49133]
This commit is contained in:
Eric Niebler
2008-10-05 01:47:33 +00:00
parent 8fba6804dc
commit 3fb54557d2
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
lexical_cast.htm
View File

@@ -81,7 +81,7 @@
conversions, such as where precision or formatting need tighter control than is
offered by the default behavior of <code>lexical_cast</code>, the conventional <code>
stringstream</code> approach is recommended. Where the conversions are
numeric to numeric, <code><a href="../numeric/conversion/doc/numeric_cast.html">numeric_cast</a></code>
numeric to numeric, <code><a href="../numeric/conversion/doc/html/boost_numericconversion/improved_numeric_cast__.html">numeric_cast</a></code>
may offer more reasonable behavior than <code>lexical_cast</code>.
<p>
For a good discussion of the options and issues involved in string-based
@@ -213,9 +213,9 @@ Eliminate an overhead of <code>std::locale</code> if your program runs in the "C
Lexical conversion to these types is simply reading a byte from source but since the source has
more than one byte, the exception is thrown.
<p>Please use other integer types such as <code>int</code> or <code>short int</code>. If bounds checking
is important, you can also call <a href="../../libs/numeric/conversion/doc/numeric_cast.html">numeric_cast</a>:
is important, you can also call <a href="../../libs/numeric/conversion/doc/html/boost_numericconversion/improved_numeric_cast__.html">numeric_cast</a>:
<pre><a href="../../libs/numeric/conversion/doc/numeric_cast.html">numeric_cast</a>&lt;int8_t&gt;(lexical_cast&lt;int&gt;("127"));</pre>
<pre><a href="../../libs/numeric/conversion/doc/html/boost_numericconversion/improved_numeric_cast__.html">numeric_cast</a>&lt;int8_t&gt;(lexical_cast&lt;int&gt;("127"));</pre>
<p> Q: What does <code>lexical_cast&lt;std::string&gt;</code> of an <code>int8_t</code> or <code>uint8_t</code> not do what I expect?
<br> A: As above, note that <code>int8_t</code> and <code>uint8_t</code> are actually chars and are formatted as such. To avoid this, cast to an integer type first: