diff options
Diffstat (limited to 'cutl/details/boost/regex/src/w32_regex_traits.cxx')
| -rw-r--r-- | cutl/details/boost/regex/src/w32_regex_traits.cxx | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/cutl/details/boost/regex/src/w32_regex_traits.cxx b/cutl/details/boost/regex/src/w32_regex_traits.cxx index d17db73..c9d29e8 100644 --- a/cutl/details/boost/regex/src/w32_regex_traits.cxx +++ b/cutl/details/boost/regex/src/w32_regex_traits.cxx @@ -283,9 +283,11 @@ BOOST_REGEX_DECL std::string BOOST_REGEX_CALL w32_cat_get(const cat_type& cat, l if (r == 0) return def; - LPSTR buf = (LPSTR)_alloca( (r + 1) * 2 ); - if (::WideCharToMultiByte(CP_ACP, 0, wbuf, r, buf, (r + 1) * 2, NULL, NULL) == 0) - return def; + + int buf_size = 1 + ::WideCharToMultiByte(CP_ACP, 0, wbuf, r, NULL, 0, NULL, NULL); + LPSTR buf = (LPSTR)_alloca(buf_size); + if (::WideCharToMultiByte(CP_ACP, 0, wbuf, r, buf, buf_size, NULL, NULL) == 0) + return def; // failed conversion. #endif return std::string(buf); } @@ -485,7 +487,7 @@ BOOST_REGEX_DECL char BOOST_REGEX_CALL w32_tolower(char c, lcid_type idx) return c; if (::WideCharToMultiByte(code_page, 0, &wide_result, 1, result, 2, NULL, NULL) == 0) - return c; + return c; // No single byte lower case equivalent available #endif return result[0]; } @@ -556,7 +558,7 @@ BOOST_REGEX_DECL char BOOST_REGEX_CALL w32_toupper(char c, lcid_type idx) return c; if (::WideCharToMultiByte(code_page, 0, &wide_result, 1, result, 2, NULL, NULL) == 0) - return c; + return c; // No single byte upper case equivalent available. #endif return result[0]; } |