diff options
Diffstat (limited to 'stdlib/tst-strtod.c')
-rw-r--r-- | stdlib/tst-strtod.c | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/stdlib/tst-strtod.c b/stdlib/tst-strtod.c deleted file mode 100644 index 1ab7f8a5aa..0000000000 --- a/stdlib/tst-strtod.c +++ /dev/null @@ -1,218 +0,0 @@ -/* Basic tests for strtod. - Copyright (C) 1991-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#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 }, - { "Inf", HUGE_VAL, '\0', 0 }, - { "-Inf", -HUGE_VAL, '\0', 0 }, - { "+InFiNiTy", HUGE_VAL, '\0', 0 }, - { "0x80000Ap-23", 0x80000Ap-23, '\0', 0 }, - { "1e-324", 0, '\0', ERANGE }, - { "0x100000000000008p0", 0x1p56, '\0', 0 }, - { "0x100000000000008.p0", 0x1p56, '\0', 0 }, - { "0x100000000000008.00p0", 0x1p56, '\0', 0 }, - { "0x10000000000000800p0", 0x1p64, '\0', 0 }, - { "0x10000000000000801p0", 0x1.0000000000001p64, '\0', 0 }, - { NULL, 0, '\0', 0 } - }; - -static void expand (char *dst, int c); -static int long_dbl (void); - -static int -do_test (void) -{ - char buf[100]; - 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) != +1.000000000116415321826934814453125L) - { - printf ("input2: %La != %La\n", strtold (input2, NULL), - +1.000000000116415321826934814453125L); - status = 1; - } - - static struct { const char *str; long double l; } ltests[] = - { - { "42.0000000000000000001", 42.0000000000000000001L }, - { "42.00000000000000000001", 42.00000000000000000001L }, - { "42.000000000000000000001", 42.000000000000000000001L } - }; - int n; - for (n = 0; n < sizeof (ltests) / sizeof (ltests[0]); ++n) - if (strtold (ltests[n].str, NULL) != ltests[n].l) - { - printf ("ltests[%d]: %La != %La\n", n, - strtold (ltests[n].str, NULL), ltests[n].l); - status = 1; - } - - status |= long_dbl (); - - return status ? EXIT_FAILURE : EXIT_SUCCESS; -} - -static void -expand (char *dst, 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; -} - -#include <support/test-driver.c> |