wint_t __wuflow (FILE *fp) { if (fp->_mode < 0 || (fp->_mode == 0 && _IO_fwide (fp, 1) != 1)) return WEOF; if (fp->_mode == 0) _IO_fwide (fp, 1); if (_IO_in_put_mode (fp)) if (_IO_switch_to_wget_mode (fp) == EOF) return WEOF; if (fp->_wide_data->_IO_read_ptr < fp->_wide_data->_IO_read_end) return *fp->_wide_data->_IO_read_ptr++; if (_IO_in_backup (fp)) { _IO_switch_to_main_wget_area (fp); if (fp->_wide_data->_IO_read_ptr < fp->_wide_data->_IO_read_end) return *fp->_wide_data->_IO_read_ptr++; } if (_IO_have_markers (fp)) { if (save_for_wbackup (fp, fp->_wide_data->_IO_read_end)) return WEOF; } else if (_IO_have_wbackup (fp)) _IO_free_wbackup_area (fp); return _IO_UFLOW (fp); }
int __uflow (_IO_FILE *fp) { #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T if (_IO_vtable_offset (fp) == 0 && _IO_fwide (fp, -1) != -1) return EOF; #endif if (fp->_mode == 0) _IO_fwide (fp, -1); if (_IO_in_put_mode (fp)) if (_IO_switch_to_get_mode (fp) == EOF) return EOF; if (fp->_IO_read_ptr < fp->_IO_read_end) return *(unsigned char *) fp->_IO_read_ptr++; if (_IO_in_backup (fp)) { _IO_switch_to_main_get_area (fp); if (fp->_IO_read_ptr < fp->_IO_read_end) return *(unsigned char *) fp->_IO_read_ptr++; } if (_IO_have_markers (fp)) { if (save_for_backup (fp, fp->_IO_read_end)) return EOF; } else if (_IO_have_backup (fp)) _IO_free_backup_area (fp); return _IO_UFLOW (fp); }