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Groups > comp.lang.c++.moderated > #1367

Re: codecvt problem

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Rafał Moniuszko wrote, On 5.6.2011 15:25:
[...]
> ==9451== Conditional jump or move depends on uninitialised value(s)
I think that this is likely because of uninitialized mystate variable. Add
#include <cstring> and do std::memset (&mystate, 0, sizeof(mystate));:


// codecvt::out example
#include <iostream>
#include <locale>
#include <string>
#include <cstring> // XXX

using namespace std;

int main ()
{
  locale mylocale;
  mbstate_t mystate;

  wstring mywstring;

  const codecvt<wchar_t,char,mbstate_t>& myfacet =
    use_facet<codecvt<wchar_t,char,mbstate_t> >(mylocale);

  codecvt<wchar_t,char,mbstate_t>::result myresult;

  cout << "Enter sentence: ";
  getline (wcin,mywstring);

  size_t length = mywstring.length();
  char* pstr= new char [length+1];

  const wchar_t* pwc;
  char* pc;

  std::memset (&mystate, 0, sizeof(mystate)); // XXX
  // translate characters:
  myresult = myfacet.out (mystate,
      mywstring.c_str(), mywstring.c_str()+length+1, pwc,
      pstr, pstr+length+1, pc);

  if ( myresult == codecvt<wchar_t,char,mbstate_t>::ok )
	  cout << "Translation successful: " << pstr << endl;
  return 0;
}


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Thread

codecvt problem  Rafał Moniuszko <rafal.lists@gmail.com> - 2011-06-05 07:25 -0600
  Re: codecvt problem Vaclav Haisman <v.haisman@sh.cvut.cz> - 2011-06-05 21:41 -0600
    Re: codecvt problem  Jeff Flinn <TriumphSprint2000@hotmail.com> - 2011-06-06 12:50 -0600
      Re: codecvt problem Vaclav Haisman <v.haisman@sh.cvut.cz> - 2011-06-06 15:31 -0600
        Re: codecvt problem  Martin Bonner <martinfrompi@yahoo.co.uk> - 2011-06-08 02:06 -0600
          Re: codecvt problem  Vaclav Haisman <v.haisman@sh.cvut.cz> - 2011-06-08 17:24 -0600
            Re: codecvt problem  Seungbeom Kim <musiphil@bawi.org> - 2011-06-09 07:02 -0600
              Re: codecvt problem Vaclav Haisman <v.haisman@sh.cvut.cz> - 2011-06-16 17:04 -0600
                Re: codecvt problem Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-06-17 06:42 -0600
                Re: codecvt problem Seungbeom Kim <musiphil@bawi.org> - 2011-06-18 07:38 -0600
                Re: codecvt problem Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-06-20 13:16 -0600
                Re: codecvt problem Seungbeom Kim <musiphil@bawi.org> - 2011-06-23 14:42 -0600
        Re: codecvt problem  Seungbeom Kim <musiphil@bawi.org> - 2011-06-09 07:01 -0600
      Re: codecvt problem Daniel Krügler <daniel.kruegler@googlemail.com> - 2011-06-06 15:31 -0600
        Re: codecvt problem Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-06-07 03:07 -0600
          Re: codecvt problem  Daniel Krügler <daniel.kruegler@googlemail.com> - 2011-06-07 10:31 -0600
  Re: codecvt problem  Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-06-06 12:47 -0600

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