5bfcc4d182
2001-02-07 Ulrich Drepper <drepper@redhat.com> * stdlib/strtod.c: Never stop prematurely reading digits before the decimal point is found. Compute exponent limit for negative exponents correctly. For numbers ending in all zeros eat the zeroes even before the decimal point if the exponent is negative [PR libc/2072]. * stdlib/Makefile (tests): Add bug-strtod. * stdlib/bug-strtod.c: New file. * posix/regex.c (regex_compile): Don't store pointer in wchar_t array. Store index. (compile_range): Handle index being passed, not pointer. Patch by Isamu Hasegawa <isamu@yamato.ibm.com>.
95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
/* Test to strtod etc for numbers like x000...0000.000e-nn.
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This file is part of the GNU C Library.
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Copyright (C) 2001 Free Software Foundation, Inc.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int
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main (void)
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{
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char buf[300];
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int cnt;
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int result = 0;
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for (cnt = 0; cnt < 200; ++cnt)
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{
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ssize_t n;
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float f;
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n = sprintf (buf, "%d", cnt);
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memset (buf + n, '0', cnt);
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sprintf (buf + n + cnt, ".000e-%d", cnt);
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f = strtof (buf, NULL);
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if (f != (float) cnt)
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{
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printf ("strtof(\"%s\") failed for cnt == %d (%g instead of %g)\n",
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buf, cnt, f, (float) cnt);
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result = 1;
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}
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else
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printf ("strtof() fine for cnt == %d\n", cnt);
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}
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for (cnt = 0; cnt < 200; ++cnt)
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{
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ssize_t n;
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double f;
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n = sprintf (buf, "%d", cnt);
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memset (buf + n, '0', cnt);
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sprintf (buf + n + cnt, ".000e-%d", cnt);
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f = strtod (buf, NULL);
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if (f != (double) cnt)
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{
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printf ("strtod(\"%s\") failed for cnt == %d (%g instead of %g)\n",
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buf, cnt, f, (double) cnt);
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result = 1;
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}
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else
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printf ("strtod() fine for cnt == %d\n", cnt);
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}
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for (cnt = 0; cnt < 200; ++cnt)
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{
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ssize_t n;
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long double f;
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n = sprintf (buf, "%d", cnt);
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memset (buf + n, '0', cnt);
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sprintf (buf + n + cnt, ".000e-%d", cnt);
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f = strtold (buf, NULL);
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if (f != (long double) cnt)
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{
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printf ("strtold(\"%s\") failed for cnt == %d (%Lg instead of %Lg)\n",
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buf, cnt, f, (long double) cnt);
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result = 1;
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}
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else
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printf ("strtold() fine for cnt == %d\n", cnt);
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}
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return result;
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}
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