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The C Users' Group Library 1994 August
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wc-cdrom-cusersgrouplibrary-1994-08.iso
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v_10_07
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1007014a
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1992-05-05
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Listing 3 -- mbstowcs.c
/* mbstowcs function */
#include <stdlib.h>
size_t (mbstowcs)(wchar_t *wcs, const char *s, size_t n)
{ /* translate multibyte string to wide char string */
int i;
wchar_t *pwc;
_Mbsave state = {0};
for (pwc = wcs; 0 < n; ++pwc, --n)
{ /* make another wide character */
i = _Mbtowc(pwc, s, n, &state);
if (i == -1)
return (-1);
else if (i == 0 || *pwc == 0)
return (pwc - wcs);
s += i;
}
return (pwc - wcs);
}