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[SVN r12612]
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Vesa Karvonen
2002-01-31 21:52:46 +00:00
parent b9f6fe1795
commit 3b7418f9ce
10 changed files with 51 additions and 128 deletions
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doc/reference/stringize.htm
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@ -9,32 +9,12 @@
<hr>
<H2><a name="BOOST_PP_STRINGIZE">#define BOOST_PP_STRINGIZE</a>(X)</H2>
<P>Delays the stringization of X.</P>
<P>Stringizes X after it is macro expanded.</P>
<P>For example,</P>
<PRE>
#define NOTE(STR)\
message(__FILE__ "(" <a href="stringize.htm#BOOST_PP_STRINGIZE">BOOST_PP_STRINGIZE</a>(__LINE__) ") : " STR)
// ...
#pragma NOTE("TBD!")
</PRE>
<P>expands to:</P>
<PRE>
#pragma message("examples.cpp" "(" "20" ") : " "TBD!")
</PRE>
<P>The use of <a href="stringize.htm#BOOST_PP_STRINGIZE">BOOST_PP_STRINGIZE</a>() above lets the PP expand the __LINE__
before stringizing it. If # would be used directly, the code would
expand to:</P>
<PRE>
#pragma message("examples.cpp" "(" "__LINE__" ") : " "TBD!")
</PRE>
<H3>Example</H3>
<UL>
<LI><a href="../../example/note.c">note.c</a>
</UL>
<hr>