regress/lib/libc/stdio/scanf/scanf.c

   1 /* $NetBSD: scanf.c,v 1.2 2003/06/02 01:45:01 simonb Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2003 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30
  31 #include <assert.h>
  32 #include <err.h>
  33 #include <stdio.h>
  34
  35 #define NUM     -0x1234
  36 #define STRNUM  ___STRING(NUM)
  37
  38 int
  39 main(int argc, char **argv)
  40 {
  41         int i;
  42
  43         /*
  44          * NetBSD PR lib/21691:
  45          * sscanf(3) %i format does not work properly with -ve hex numbers
  46          */
  47         sscanf(STRNUM, "%i", &i);
  48         if (i != NUM)
  49                 errx(1, "want %d, got %d", NUM, i);
  50         assert(i == NUM);
  51
  52         /*
  53          * "%x" has the same problem as "%i" in lib/21691.
  54          */
  55         sscanf(STRNUM, "%x", &i);
  56         if (i != NUM)
  57                 errx(1, "want %d, got %d", NUM, i);
  58         assert(i == NUM);
  59
  60
  61         return (0);
  62 }