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[ruby] use WCHAR_MAX to determine the encoding of std::wstring.

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This commit is contained in:
Takashi Tamura 2017-02-19 15:57:34 +09:00
commit 5722d81a09
2 changed files with 32 additions and 25 deletions
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25
Lib/ruby/std_wstring.i
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@ -7,6 +7,31 @@ extern "C" {
#include "ruby/encoding.h"
#endif
/**
* The internal encoding of std::wstring is defined based on
* the size of wchar_t. If it is not appropriate for your library,
* SWIG_RUBY_WSTRING_ENCODING must be given when compiling.
*/
#ifndef SWIG_RUBY_WSTRING_ENCODING
#if WCHAR_MAX == 0x7fff || WCHAR_MAX == 0xffff
#define SWIG_RUBY_WSTRING_ENCODING "UTF-16"
#elif WCHAR_MAX == 0x7fffffff || WCHAR_MAX == 0xffffffff
#define SWIG_RUBY_WSTRING_ENCODING "UTF-32"
#else
#error unsupported wchar_t size. SWIG_RUBY_WSTRING_ENCODING must be given.
#endif
#endif
/**
* If Encoding.default_internal is nil, this encoding will be used
* when coverting from std::wstring to String object in Ruby.
*/
#ifndef SWIG_RUBY_INTERNAL_ENCODING
#define SWIG_RUBY_INTERNAL_ENCODING "UTF-8"
#endif
#ifdef __cplusplus
}
#endif