#include #include _BSD_RUNE_T_ ___tolower(c) _BSD_RUNE_T_ c; { int x; _RuneRange *rr = &_CurrentRuneLocale->maplower_ext; _RuneEntry *re = rr->ranges; if (c == EOF) return(EOF); for (x = 0; x < rr->nranges; ++x, ++re) { if (c < re->min) return(c); if (c <= re->max) return(re->map + c - re->min); } return(c); }