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101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#ifdef BSD
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#include </usr/include/stdio.h>
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#else
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#include <stdio.h>
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#endif
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#include <stdlib.h>
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#include <string.h>
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int
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DEFUN(main, (argc, argv), int argc AND char **argv)
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{
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char buf[BUFSIZ];
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FILE *in = stdin, *out = stdout;
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if (argc == 2 && !strcmp (argv[1], "-opipe"))
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{
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out = popen ("/bin/cat", "w");
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if (out == NULL)
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{
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perror ("popen: /bin/cat");
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exit (EXIT_FAILURE);
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}
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}
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else if (argc == 3 && !strcmp (argv[1], "-ipipe"))
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{
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sprintf (buf, "/bin/cat %s", argv[2]);
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in = popen (buf, "r");
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}
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{
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char name[50];
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fprintf (out,
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"sscanf (\"thompson\", \"%%s\", name) == %d, name == \"%s\"\n",
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sscanf ("thompson", "%s", name),
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name);
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}
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fputs ("Testing scanf (vfscanf)\n", out);
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fputs ("Test 1:\n", out);
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{
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int n, i;
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float x;
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char name[50];
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n = fscanf (in, "%d%f%s", &i, &x, name);
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fprintf (out, "n = %d, i = %d, x = %f, name = \"%.50s\"\n",
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n, i, x, name);
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}
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fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in));
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fputs ("Test 2:\n", out);
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{
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int i;
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float x;
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char name[50];
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(void) fscanf (in, "%2d%f%*d %[0123456789]", &i, &x, name);
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fprintf (out, "i = %d, x = %f, name = \"%.50s\"\n", i, x, name);
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}
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fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in));
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fputs ("Test 3:\n", out);
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{
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float quant;
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char units[21], item[21];
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while (!feof (in) && !ferror (in))
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{
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int count;
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quant = 0.0;
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units[0] = item[0] = '\0';
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count = fscanf (in, "%f%20s of %20s", &quant, units, item);
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(void) fscanf (in, "%*[^\n]");
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fprintf (out, "count = %d, quant = %f, item = %.21s, units = %.21s\n",
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count, quant, item, units);
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}
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}
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fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in));
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if (out != stdout)
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pclose (out);
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exit(EXIT_SUCCESS);
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}
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