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don't dereference empty strings

This commit is contained in:
Arvid Norberg 2010-07-24 06:46:58 +00:00
parent aa1da121bc
commit 030b2b5be8
1 changed files with 6 additions and 5 deletions
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11
include/libtorrent/utf8.hpp
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@ -50,15 +50,15 @@ namespace libtorrent
{
// allocate space for worst-case
wide.resize(utf8.size());
wchar_t const* dst_start = &wide[0];
char const* src_start = &utf8[0];
wchar_t const* dst_start = wide.c_str();
char const* src_start = utf8.c_str();
ConversionResult ret;
if (sizeof(wchar_t) == sizeof(UTF32))
{
ret = ConvertUTF8toUTF32((const UTF8**)&src_start, (const UTF8*)src_start
+ utf8.size(), (UTF32**)&dst_start, (UTF32*)dst_start + wide.size()
, lenientConversion);
wide.resize(dst_start - &wide[0]);
wide.resize(dst_start - wide.c_str());
return ret;
}
else if (sizeof(wchar_t) == sizeof(UTF16))
@ -66,7 +66,7 @@ namespace libtorrent
ret = ConvertUTF8toUTF16((const UTF8**)&src_start, (const UTF8*)src_start
+ utf8.size(), (UTF16**)&dst_start, (UTF16*)dst_start + wide.size()
, lenientConversion);
wide.resize(dst_start - &wide[0]);
wide.resize(dst_start - wide.c_str());
return ret;
}
else
@ -79,8 +79,9 @@ namespace libtorrent
{
// allocate space for worst-case
utf8.resize(wide.size() * 6);
if (wide.empty()) return 0;
char* dst_start = &utf8[0];
wchar_t const* src_start = &wide[0];
wchar_t const* src_start = wide.c_str();
ConversionResult ret;
if (sizeof(wchar_t) == sizeof(UTF32))
{