262 lines
7.0 KiB
C
262 lines
7.0 KiB
C
/* Copyright (C) 1991,96,97,98,99,2000,2001,2003 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <ctype.h>
|
|
#include <locale.h>
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <math.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 },
|
|
{ "0e-19", 0, '\0', 0 },
|
|
{ "4\00012", 4.0, '\0', 0 },
|
|
{ "5.9e-76", 5.9e-76, '\0', 0 },
|
|
{ "0x1.4p+3", 10.0, '\0', 0 },
|
|
{ "0xAp0", 10.0, '\0', 0 },
|
|
{ "0x0Ap0", 10.0, '\0', 0 },
|
|
{ "0x0A", 10.0, '\0', 0 },
|
|
{ "0xA0", 160.0, '\0', 0 },
|
|
{ "0x0.A0p8", 160.0, '\0', 0 },
|
|
{ "0x0.50p9", 160.0, '\0', 0 },
|
|
{ "0x0.28p10", 160.0, '\0', 0 },
|
|
{ "0x0.14p11", 160.0, '\0', 0 },
|
|
{ "0x0.0A0p12", 160.0, '\0', 0 },
|
|
{ "0x0.050p13", 160.0, '\0', 0 },
|
|
{ "0x0.028p14", 160.0, '\0', 0 },
|
|
{ "0x0.014p15", 160.0, '\0', 0 },
|
|
{ "0x00.00A0p16", 160.0, '\0', 0 },
|
|
{ "0x00.0050p17", 160.0, '\0', 0 },
|
|
{ "0x00.0028p18", 160.0, '\0', 0 },
|
|
{ "0x00.0014p19", 160.0, '\0', 0 },
|
|
{ "0x1p-1023",
|
|
1.11253692925360069154511635866620203210960799023116591527666e-308,
|
|
'\0', 0 },
|
|
{ "0x0.8p-1022",
|
|
1.11253692925360069154511635866620203210960799023116591527666e-308,
|
|
'\0', 0 },
|
|
#if __GNUC_PREREQ(2,96)
|
|
/* For older GCC release HUGE_VAL is not a constant. */
|
|
{ "Inf", HUGE_VAL, '\0', 0 },
|
|
{ "-Inf", -HUGE_VAL, '\0', 0 },
|
|
{ "+InFiNiTy", HUGE_VAL, '\0', 0 },
|
|
#endif
|
|
{ "0x80000Ap-23", 0x80000Ap-23, '\0', 0 },
|
|
{ NULL, 0, '\0', 0 }
|
|
};
|
|
|
|
static void expand (char *dst, int c);
|
|
static int long_dbl (void);
|
|
static int locale_test (void);
|
|
|
|
int
|
|
main (int argc, char ** argv)
|
|
{
|
|
char buf[100];
|
|
register const struct ltest *lt;
|
|
char *ep;
|
|
int status = 0;
|
|
int save_errno;
|
|
|
|
for (lt = tests; lt->str != NULL; ++lt)
|
|
{
|
|
double d;
|
|
|
|
errno = 0;
|
|
d = strtod(lt->str, &ep);
|
|
save_errno = errno;
|
|
printf ("strtod (\"%s\") test %u",
|
|
lt->str, (unsigned int) (lt - tests));
|
|
if (d == lt->expect && *ep == lt->left && save_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 (save_errno != lt->err)
|
|
printf (" errno %d (%s) instead of %d (%s)\n",
|
|
save_errno, strerror (save_errno),
|
|
lt->err, strerror (lt->err));
|
|
status = 1;
|
|
}
|
|
}
|
|
|
|
sprintf (buf, "%f", strtod ("-0.0", NULL));
|
|
if (strcmp (buf, "-0.000000") != 0)
|
|
{
|
|
printf (" strtod (\"-0.0\", NULL) returns \"%s\"\n", buf);
|
|
status = 1;
|
|
}
|
|
|
|
const char input[] = "3752432815e-39";
|
|
|
|
float f1 = strtold (input, NULL);
|
|
float f2;
|
|
float f3 = strtof (input, NULL);
|
|
sscanf (input, "%g", &f2);
|
|
|
|
if (f1 != f2)
|
|
{
|
|
printf ("f1 = %a != f2 = %a\n", f1, f2);
|
|
status = 1;
|
|
}
|
|
if (f1 != f3)
|
|
{
|
|
printf ("f1 = %a != f3 = %a\n", f1, f3);
|
|
status = 1;
|
|
}
|
|
if (f2 != f3)
|
|
{
|
|
printf ("f2 = %a != f3 = %a\n", f2, f3);
|
|
status = 1;
|
|
}
|
|
|
|
const char input2[] = "+1.000000000116415321826934814453125";
|
|
if (strtold (input2, NULL) != +1.000000000116415321826934814453125)
|
|
{
|
|
printf ("input2: %La != %La\n", strtold (input2, NULL),
|
|
+1.000000000116415321826934814453125);
|
|
status = 1;
|
|
}
|
|
|
|
status |= long_dbl ();
|
|
|
|
status |= locale_test ();
|
|
|
|
return status ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|
|
|
|
static void
|
|
expand (dst, c)
|
|
char *dst;
|
|
register int c;
|
|
{
|
|
if (isprint (c))
|
|
{
|
|
dst[0] = c;
|
|
dst[1] = '\0';
|
|
}
|
|
else
|
|
(void) sprintf (dst, "%#.3o", (unsigned int) c);
|
|
}
|
|
|
|
static int
|
|
long_dbl (void)
|
|
{
|
|
/* Regenerate this string using
|
|
|
|
echo '(2^53-1)*2^(1024-53)' | bc | sed 's/\([^\]*\)\\*$/ "\1"/'
|
|
|
|
*/
|
|
static const char longestdbl[] =
|
|
"17976931348623157081452742373170435679807056752584499659891747680315"
|
|
"72607800285387605895586327668781715404589535143824642343213268894641"
|
|
"82768467546703537516986049910576551282076245490090389328944075868508"
|
|
"45513394230458323690322294816580855933212334827479782620414472316873"
|
|
"8177180919299881250404026184124858368";
|
|
double d = strtod (longestdbl, NULL);
|
|
|
|
printf ("strtod (\"%s\", NULL) = %g\n", longestdbl, d);
|
|
|
|
if (d != 179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.000000)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Perform a few tests in a locale with thousands separators. */
|
|
static int
|
|
locale_test (void)
|
|
{
|
|
static const struct
|
|
{
|
|
const char *loc;
|
|
const char *str;
|
|
double exp;
|
|
ptrdiff_t nread;
|
|
} tests[] =
|
|
{
|
|
{ "de_DE.UTF-8", "1,5", 1.5, 3 },
|
|
{ "de_DE.UTF-8", "1.5", 1.0, 1 },
|
|
{ "de_DE.UTF-8", "1.500", 1500.0, 5 },
|
|
{ "de_DE.UTF-8", "36.893.488.147.419.103.232", 0x1.0p65, 26 }
|
|
};
|
|
#define ntests (sizeof (tests) / sizeof (tests[0]))
|
|
size_t n;
|
|
int result = 0;
|
|
|
|
puts ("\nLocale tests");
|
|
|
|
for (n = 0; n < ntests; ++n)
|
|
{
|
|
double d;
|
|
char *endp;
|
|
|
|
if (setlocale (LC_ALL, tests[n].loc) == NULL)
|
|
{
|
|
printf ("cannot set locale %s\n", tests[n].loc);
|
|
result = 1;
|
|
continue;
|
|
}
|
|
|
|
/* We call __strtod_interal here instead of strtod to tests the
|
|
handling of grouping. */
|
|
d = __strtod_internal (tests[n].str, &endp, 1);
|
|
if (d != tests[n].exp)
|
|
{
|
|
printf ("strtod(\"%s\") returns %g and not %g\n",
|
|
tests[n].str, d, tests[n].exp);
|
|
result = 1;
|
|
}
|
|
else if (endp - tests[n].str != tests[n].nread)
|
|
{
|
|
printf ("strtod(\"%s\") read %td bytes and not %td\n",
|
|
tests[n].str, endp - tests[n].str, tests[n].nread);
|
|
result = 1;
|
|
}
|
|
}
|
|
|
|
if (result == 0)
|
|
puts ("all OK");
|
|
|
|
return result;
|
|
}
|