id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3846	Boost.Interprocess getline(istream, basic_string, CharT) contains duplicated variable int c1	wlam@…	Ion Gaztañaga	"As of Boost 1.41.0 (and in SVN as of today, 18 Jan 2010), the Boost.Interprocess container library implements

  template <...>
  std::istream &getline(std::istream&, basic_string<...> &, CharT)

in 

  boost/interprocess/containers/container/string.hpp

with the following snippet:

Line 2276:
      int c1;
      while (nread < s.max_size()) {
         int c1 = buf->sbumpc();
      :
      }

The outer declaration of c1 can trigger an (apparently correct) unused-variable warning in gcc.  If the declaration is indeed unnecessary (e.g., is not some compiler-bug workaround), it looks trivial to remove:

--- /home/wlam/boost_1_41_0/boost/interprocess/containers/container/string.hpp 2009-10-15 11:46:26.000000000 -0700
+++ ../boost/interprocess/containers/container/string.hpp       2010-01-18 20:29:36.635619313 -0800
@@ -2273,7 +2273,6 @@
       std::basic_streambuf<CharT, Traits>* buf = is.rdbuf();
       s.clear();

-      int c1;
       while (nread < s.max_size()) {
          int c1 = buf->sbumpc();
          if (Traits::eq_int_type(c1, Traits::eof())) {
"	Patches	closed	Boost 1.45.0	interprocess	Boost 1.41.0	Cosmetic	fixed		Wang Lam <wlam@…>