In the folloiwng code fragment, I am attempting to convert a multi-byte
string into a wide string using the std::codecvt::out() function. I
have found that when I do so, the compiler complains that it cannot
find a match but then proceeds to list an exact match as the one and
only candidate.
using namespace std;
String rtn;
char temp[MB_LEN_MAX];
wchar_t val = static_cast<wchar_t>(m_c);
mbstate_t state = { 0 };
wchar_t *next1;
char *next2;
int result;
result = use_facet<codecvt<wchar_t, char, mbstate_t> >(locale).out(
state,
&val,
&val + 1,
next1,
&(temp[0]),
temp + sizeof(temp),
next2);
if(result != codecvt_base::error)
rtn = String(temp,next2);
return rtn;
Here is a copy of the compiler error message:
/home/jon/work/cora/coratools/advxml/Elements.cpp: In member function
'virtual AdvXMLParser::String AdvXMLParser::CharRef::GetData()
const':
/home/jon/work/cora/coratools/advxml/Elements.cpp:471: error: no
matching function for call to 'std::codecvt<wchar_t, char,
mbstate_t>::out(mbstate_t&, wchar_t*, wchar_t*, wchar_t*&, char*,
char*, char*&) const'
/usr/lib/gcc/i386-redhat-linux/4.0.1/../../../../include/c++/4.0.1/bits/codecvt.h:121:
note: candidates are: std::codecvt_base::result
std::__codecvt_abstract_base<_InternT, _ExternT,
_StateT>::out(_StateT&, const _InternT*, const _InternT*, const
_InternT*&, _ExternT*, _ExternT*, _ExternT*&) const [with _InternT =
wchar_t, _ExternT = char, _StateT = mbstate_t]
Regards,
Jon Trauntvein
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