mirror of git://sourceware.org/git/glibc.git
94 lines
2.3 KiB
C
94 lines
2.3 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) 2001-2015 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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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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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