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110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/* Copyright (C) 1991, 1996, 1997, 1998 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 not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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struct ltest
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{
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const char *str; /* Convert this. */
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double expect; /* To get this. */
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char left; /* With this left over. */
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int err; /* And this in errno. */
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};
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static const struct ltest tests[] =
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{
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{ "12.345", 12.345, '\0', 0 },
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{ "12.345e19", 12.345e19, '\0', 0 },
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{ "-.1e+9", -.1e+9, '\0', 0 },
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{ ".125", .125, '\0', 0 },
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{ "1e20", 1e20, '\0', 0 },
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{ "0e-19", 0, '\0', 0 },
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{ "4\00012", 4.0, '\0', 0 },
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{ "5.9e-76", 5.9e-76, '\0', 0 },
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{ NULL, 0, '\0', 0 }
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};
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static void expand __P ((char *dst, int c));
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int
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main (int argc, char ** argv)
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{
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char buf[100];
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register const struct ltest *lt;
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char *ep;
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int status = 0;
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int save_errno;
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for (lt = tests; lt->str != NULL; ++lt)
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{
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double d;
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errno = 0;
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d = strtod(lt->str, &ep);
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save_errno = errno;
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printf ("strtod (\"%s\") test %u",
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lt->str, (unsigned int) (lt - tests));
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if (d == lt->expect && *ep == lt->left && save_errno == lt->err)
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puts ("\tOK");
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else
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{
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puts ("\tBAD");
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if (d != lt->expect)
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printf (" returns %.60g, expected %.60g\n", d, lt->expect);
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if (lt->left != *ep)
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{
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char exp1[5], exp2[5];
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expand (exp1, *ep);
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expand (exp2, lt->left);
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printf (" leaves '%s', expected '%s'\n", exp1, exp2);
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}
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if (save_errno != lt->err)
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printf (" errno %d (%s) instead of %d (%s)\n",
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save_errno, strerror (save_errno),
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lt->err, strerror (lt->err));
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status = 1;
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}
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}
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sprintf (buf, "%f", strtod ("-0.0", NULL));
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if (strcmp (buf, "-0.000000") != 0)
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{
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printf (" strtod (\"-0.0\', NULL) returns \"%s\"\n", buf);
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status = 1;
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}
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exit (status ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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static void
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expand (dst, c)
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char *dst;
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register int c;
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{
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if (isprint (c))
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{
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dst[0] = c;
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dst[1] = '\0';
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}
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else
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(void) sprintf (dst, "%#.3o", (unsigned int) c);
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}
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