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I want to convert a Matlab string to a wchar string, such that I can use e.g. either the C-function _wopen? Or to a LPCWSTR under Windows?
Matlab's CHAR arrays use 2 bytes per element. Inside a C-Mex function I can use mxArrayToString to convert a Matlab CHAR array to a C char * vector. The documentation of mxArrayToString state, that "it supports multibyte character sets". Unfortunately this is not explained with any further details.
Currently under Windows I copy the contents of the mxChar array to a wchar_t vector and append a L'\0'. It seems to work, but I'm not really convinced that this is stable. Under Linux a wchar has a length of 4 bytes and the direct copy is not sufficient.
Are Matlab CHARs UTF16 encoded? How does mxArrayToString support multibyte charcter sets exactly? How do I convert mxChar to wchar correctly and efficiently under Windows and Linux?
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