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#include <wchar.h> #include "stdio_impl.h" #include "locale_impl.h" int fwide(FILE *f, int mode) { FLOCK(f); if (mode) { if (!f->locale) f->locale = MB_CUR_MAX==1 ? C_LOCALE : UTF8_LOCALE; if (!f->mode) f->mode = mode>0 ? 1 : -1; } mode = f->mode; FUNLOCK(f); return mode; }