/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <ansidecl.h> #ifdef BSD #include </usr/include/stdio.h> #else #include <stdio.h> #endif #include <stdlib.h> #include <string.h> int DEFUN(main, (argc, argv), int argc AND char **argv) { char buf[BUFSIZ]; FILE *in = stdin, *out = stdout; if (argc == 2 && !strcmp (argv[1], "-opipe")) { out = popen ("/bin/cat", "w"); if (out == NULL) { perror ("popen: /bin/cat"); exit (EXIT_FAILURE); } } else if (argc == 3 && !strcmp (argv[1], "-ipipe")) { sprintf (buf, "/bin/cat %s", argv[2]); in = popen (buf, "r"); } { char name[50]; fprintf (out, "sscanf (\"thompson\", \"%%s\", name) == %d, name == \"%s\"\n", sscanf ("thompson", "%s", name), name); } fputs ("Testing scanf (vfscanf)\n", out); fputs ("Test 1:\n", out); { int n, i; float x; char name[50]; n = fscanf (in, "%d%f%s", &i, &x, name); fprintf (out, "n = %d, i = %d, x = %f, name = \"%.50s\"\n", n, i, x, name); } fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in)); fputs ("Test 2:\n", out); { int i; float x; char name[50]; (void) fscanf (in, "%2d%f%*d %[0123456789]", &i, &x, name); fprintf (out, "i = %d, x = %f, name = \"%.50s\"\n", i, x, name); } fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in)); fputs ("Test 3:\n", out); { float quant; char units[21], item[21]; while (!feof (in) && !ferror (in)) { int count; quant = 0.0; units[0] = item[0] = '\0'; count = fscanf (in, "%f%20s of %20s", &quant, units, item); (void) fscanf (in, "%*[^\n]"); fprintf (out, "count = %d, quant = %f, item = %.21s, units = %.21s\n", count, quant, item, units); } } fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in)); if (out != stdout) pclose (out); exit(EXIT_SUCCESS); }