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initial import

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This commit is contained in:
Roland McGrath
1995-02-18 01:27:10 +00:00
commit 28f540f45b
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stdlib/tst-strtod.c Normal file
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/* Copyright (C) 1991 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>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
struct ltest
{
CONST char *str; /* Convert this. */
double expect; /* To get this. */
char left; /* With this left over. */
int err; /* And this in errno. */
};
static CONST struct ltest tests[] =
{
{ "12.345", 12.345, '\0', 0 },
{ "12.345e19", 12.345e19, '\0', 0 },
{ "-.1e+9", -.1e+9, '\0', 0 },
{ ".125", .125, '\0', 0 },
{ "1e20", 1e20, '\0', 0 },
{ NULL, 0, '\0', 0 }
};
static void EXFUN(expand, (char *dst, int c));
int
DEFUN_VOID(main)
{
register CONST struct ltest *lt;
char *ep;
int status = 0;
for (lt = tests; lt->str != NULL; ++lt)
{
double d;
errno = 0;
d = strtod(lt->str, &ep);
printf("strtod(\"%s\") test %u",
lt->str, (unsigned int) (lt - tests));
if (d == lt->expect && *ep == lt->left && errno == lt->err)
puts("\tOK");
else
{
puts("\tBAD");
if (d != lt->expect)
printf(" returns %.60g, expected %.60g\n", d, lt->expect);
if (lt->left != *ep)
{
char exp1[5], exp2[5];
expand(exp1, *ep);
expand(exp2, lt->left);
printf(" leaves '%s', expected '%s'\n", exp1, exp2);
}
if (errno != lt->err)
printf(" errno %d (%s) instead of %d (%s)\n",
errno, strerror(errno), lt->err, strerror(lt->err));
status = 1;
}
}
exit(status ? EXIT_FAILURE : EXIT_SUCCESS);
}
static void
DEFUN(expand, (dst, c), register char *dst AND register int c)
{
if (isprint(c))
{
dst[0] = c;
dst[1] = '\0';
}
else
(void) sprintf(dst, "%#.3o", (unsigned int) c);
}