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WinCE workaround for lack of FormatMessageA

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[SVN r40682]
This commit is contained in:
Beman Dawes
2007-11-02 12:43:47 +00:00
parent 1430daeb8c
commit e4fc987f74
1 changed files with 22 additions and 0 deletions
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22
src/error_code.cpp
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@@ -345,6 +345,7 @@ namespace
//Chris //Chris
std::string system_error_category::message( int ev ) const std::string system_error_category::message( int ev ) const
{ {
# ifndef BOOST_NO_ANSI_APIS
LPVOID lpMsgBuf; LPVOID lpMsgBuf;
::FormatMessageA( ::FormatMessageA(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_ALLOCATE_BUFFER |
@@ -359,6 +360,27 @@ namespace
); );
std::string str( static_cast<LPCSTR>(lpMsgBuf) ); std::string str( static_cast<LPCSTR>(lpMsgBuf) );
::LocalFree( lpMsgBuf ); // free the buffer ::LocalFree( lpMsgBuf ); // free the buffer
# else // WinCE workaround
LPVOID lpMsgBuf;
::FormatMessageW(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
ev,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPWSTR) &lpMsgBuf,
0,
NULL
);
int num_chars = (wcslen( static_cast<LPCWSTR>(lpMsgBuf) ) + 1) * 2;
LPSTR narrow_buffer = (LPSTR)_alloca( num_chars );
::WideCharToMultiByte(CP_ACP, 0, static_cast<LPCWSTR>(lpMsgBuf), -1, narrow_buffer, num_chars, NULL, NULL);
std::string str( narrow_buffer );
::LocalFree( lpMsgBuf ); // free the buffer
# endif
while ( str.size() while ( str.size()
&& (str[str.size()-1] == '\n' || str[str.size()-1] == '\r') ) && (str[str.size()-1] == '\n' || str[str.size()-1] == '\r') )
str.erase( str.size()-1 ); str.erase( str.size()-1 );