28 lines
		
	
	
		
			430 B
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			28 lines
		
	
	
		
			430 B
		
	
	
	
		
			C
		
	
	
	
| #include <wchar.h>
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| #include <stdlib.h>
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| #include <stdio.h>
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| #include <reent.h>
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| 
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| wint_t
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| btowc (int c)
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| {
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|   mbstate_t mbs;
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|   int retval = 0;
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|   wchar_t pwc;
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|   unsigned char b;
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| 
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|   b = (unsigned char)c;
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| 
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|   /* Put mbs in initial state. */
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|   memset (&mbs, '\0', sizeof (mbs));
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| 
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|   _REENT_CHECK_MISC(_REENT);
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| 
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|   retval = _mbtowc_r (_REENT, &pwc, &b, 1, &mbs);
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| 
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|   if (c == EOF || retval != 1)
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|     return WEOF;
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|   else
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|     return (wint_t)pwc;
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| }
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