[Boost-bugs] [Boost C++ Libraries] #12488: read_string_while duplicates character

Subject: [Boost-bugs] [Boost C++ Libraries] #12488: read_string_while duplicates character
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-09-28 09:17:28

#12488: read_string_while duplicates character
-----------------------------------------+----------------------------
 Reporter:  George <juergen.sawinski@…>  |      Owner:  johnmaddock
     Type:  Bugs                         |     Status:  new
Milestone:  To Be Determined             |  Component:  multiprecision
  Version:  Boost 1.61.0                 |   Severity:  Problem
 Keywords:                               |
-----------------------------------------+----------------------------
 Streaming, e.g. "1W" into a multiprecision number will correctly recognize
 1, but the first character after the number will be duplicated (from "1W",
 "WW" is left in the stream).

 The cause is the line

     is.rdbuf()->sputbackc(static_cast<char>(c));

 in read_string_while. The character c does not have to be put back,
 because snextc first advances position, then returns the character at new
 position.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12488>
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