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* tests/test-modf.h: New file. * tests/test-modf.c: Include <float.h> and test-modf.h. (main): Invoke test_function. * tests/test-modff.c: Include <float.h> and test-modf.h. (main): Invoke test_function. * tests/test-modfl.c: Include <float.h> and test-modf.h. (main): Invoke test_function. * modules/modf-tests (Files): Add tests/test-modf.h, tests/randomd.c. (Makefile.am): Add randomd.c to test_modf_SOURCES. * modules/modff-tests (Files): Add tests/test-modf.h, tests/randomf.c. (Makefile.am): Add randomf.c to test_modff_SOURCES. * modules/modfl-tests (Files): Add tests/test-modf.h, tests/randoml.c. (Depends-on): Add 'float'. (Makefile.am): Add randoml.c to test_modfl_SOURCES.
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/* Test of modfl() function.
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Copyright (C) 2010-2012 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2010. */
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#include <config.h>
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#include <math.h>
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#include "signature.h"
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SIGNATURE_CHECK (modfl, long double, (long double, long double *));
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#include <float.h>
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#include "fpucw.h"
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#include "macros.h"
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#define DOUBLE long double
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#define L_(literal) literal##L
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#define MANT_DIG LDBL_MANT_DIG
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#define MODF modfl
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#define RANDOM randoml
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#include "test-modf.h"
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int
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main ()
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{
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DECL_LONG_DOUBLE_ROUNDING
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BEGIN_LONG_DOUBLE_ROUNDING ();
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/* A particular positive value. */
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x = 5.972406760L;
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y = modfl (x, &z);
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ASSERT (y >= 0.972406759L && y <= 0.972406761L);
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ASSERT (z == 5.0);
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/* A particular negative value. */
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x = -5.972406760L;
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y = modfl (x, &z);
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ASSERT (y >= -0.972406761L && y <= -0.972406759L);
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ASSERT (z == -5.0L);
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test_function ();
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return 0;
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}
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