/* * have_fpos - Determine if have fgetpos and fsetpos functions * * Copyright (C) 1999,2021,2022 Landon Curt Noll * * Calc is open software; you can redistribute it and/or modify it under * the terms of the version 2.1 of the GNU Lesser General Public License * as published by the Free Software Foundation. * * Calc is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General * Public License for more details. * * A copy of version 2.1 of the GNU Lesser General Public License is * distributed with calc under the filename COPYING-LGPL. You should have * received a copy with calc; if not, write to Free Software Foundation, Inc. * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * Under source code control: 1994/11/05 03:19:52 * File existed as early as: 1994 * * chongo /\oo/\ http://www.isthe.com/chongo/ * Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/ */ /* * If the symbol HAVE_NO_FGETSETPOS is defined, we will output nothing. * If we are able to compile this program, then we must have the * fgetpos and fsetpos functions and we will output the * appropriate have_fgetsetpos.h file body. */ #include #include "banned.h" /* include after system header <> includes */ int main(void) { #if !defined(HAVE_NO_FGETSETPOS) fpos_t pos; /* file position */ /* get the current position */ (void) fgetpos(stdin, &pos); /* set the current position */ (void) fsetpos(stdin, &pos); /* print a have_fgetsetpos.h body that says we have the functions */ printf("#undef HAVE_FGETSETPOS\n"); printf("#define HAVE_FGETSETPOS 1 /* yes */\n\n"); printf("typedef fpos_t FILEPOS;\n"); #endif /* exit(0); */ return 0; }