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Diffstat (limited to 'REORG.TODO/math/basic-test.c')
| -rw-r--r-- | REORG.TODO/math/basic-test.c | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/REORG.TODO/math/basic-test.c b/REORG.TODO/math/basic-test.c new file mode 100644 index 0000000000..43badbc6aa --- /dev/null +++ b/REORG.TODO/math/basic-test.c @@ -0,0 +1,222 @@ +/* Copyright (C) 1999-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Jaeger <aj@suse.de>, 1999. + + 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 <math.h> +#include <float.h> +#include <stdio.h> + +#include <math-tests.h> + + +static int errors = 0; + + +static void +check (const char *testname, int result) +{ + if (!result) { + printf ("Failure: %s\n", testname); + errors++; + } +} + +#define TEST_FUNC(NAME, FLOAT, SUFFIX, EPSILON, HUGEVAL) \ +static void \ +NAME (void) \ +{ \ + /* Variables are declared volatile to forbid some compiler \ + optimizations. */ \ + volatile FLOAT Inf_var, qNaN_var, zero_var, one_var; \ + /* A sNaN is only guaranteed to be representable in variables with */ \ + /* static (or thread-local) storage duration. */ \ + static volatile FLOAT sNaN_var = __builtin_nans ## SUFFIX (""); \ + static volatile FLOAT minus_sNaN_var = -__builtin_nans ## SUFFIX (""); \ + FLOAT x1, x2; \ + \ + zero_var = 0.0; \ + one_var = 1.0; \ + qNaN_var = __builtin_nan ## SUFFIX (""); \ + Inf_var = one_var / zero_var; \ + \ + (void) &zero_var; \ + (void) &one_var; \ + (void) &qNaN_var; \ + (void) &sNaN_var; \ + (void) &minus_sNaN_var; \ + (void) &Inf_var; \ + \ + \ + check (#FLOAT " isinf (inf) == 1", isinf (Inf_var) == 1); \ + check (#FLOAT " isinf (-inf) == -1", isinf (-Inf_var) == -1); \ + check (#FLOAT " !isinf (1)", !(isinf (one_var))); \ + check (#FLOAT " !isinf (qNaN)", !(isinf (qNaN_var))); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " !isinf (sNaN)", !(isinf (sNaN_var))); \ + \ + check (#FLOAT " isnan (qNaN)", isnan (qNaN_var)); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " isnan (sNaN)", isnan (sNaN_var)); \ + check (#FLOAT " isnan (-qNaN)", isnan (-qNaN_var)); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " isnan (-sNaN)", isnan (minus_sNaN_var)); \ + check (#FLOAT " !isnan (1)", !(isnan (one_var))); \ + check (#FLOAT " !isnan (inf)", !(isnan (Inf_var))); \ + \ + check (#FLOAT " !issignaling (qNaN)", !(issignaling (qNaN_var))); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " issignaling (sNaN)", issignaling (sNaN_var)); \ + check (#FLOAT " !issignaling (-qNaN)", !(issignaling (-qNaN_var))); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " issignaling (-sNaN)", issignaling (minus_sNaN_var)); \ + check (#FLOAT " !issignaling (1)", !(issignaling (one_var))); \ + check (#FLOAT " !issignaling (inf)", !(issignaling (Inf_var))); \ + \ + check (#FLOAT " inf == inf", Inf_var == Inf_var); \ + check (#FLOAT " -inf == -inf", -Inf_var == -Inf_var); \ + check (#FLOAT " inf != -inf", Inf_var != -Inf_var); \ + check (#FLOAT " qNaN != qNaN", qNaN_var != qNaN_var); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " sNaN != sNaN", sNaN_var != sNaN_var); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " qNaN != sNaN", qNaN_var != sNaN_var); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " -sNaN != -sNaN", minus_sNaN_var != minus_sNaN_var); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " sNaN != -sNaN", sNaN_var != minus_sNaN_var); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " qNaN != -sNaN", qNaN_var != minus_sNaN_var); \ + \ + /* \ + the same tests but this time with NAN from <bits/nan.h> \ + NAN is a double const \ + */ \ + check (#FLOAT " isnan (NAN)", isnan (NAN)); \ + check (#FLOAT " isnan (-NAN)", isnan (-NAN)); \ + check (#FLOAT " !isinf (NAN)", !(isinf (NAN))); \ + check (#FLOAT " !isinf (-NAN)", !(isinf (-NAN))); \ + check (#FLOAT " NAN != NAN", NAN != NAN); \ + check (#FLOAT " NAN != qNaN", NAN != qNaN_var); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " NAN != sNaN", NAN != sNaN_var); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " NAN != -sNaN", NAN != minus_sNaN_var); \ + \ + /* \ + And again with the value returned by the `nan' function. \ + */ \ + check (#FLOAT " isnan (nan (\"\"))", isnan (nan ## SUFFIX (""))); \ + check (#FLOAT " isnan (-nan (\"\"))", isnan (-nan ## SUFFIX (""))); \ + check (#FLOAT " !isinf (nan (\"\"))", !(isinf (nan ## SUFFIX ("")))); \ + check (#FLOAT " !isinf (-nan (\"\"))", !(isinf (-nan ## SUFFIX ("")))); \ + check (#FLOAT " nan (\"\") != nan (\"\")", \ + nan ## SUFFIX ("") != nan ## SUFFIX ("")); \ + check (#FLOAT " nan (\"\") != qNaN", nan ## SUFFIX ("") != qNaN_var); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " nan (\"\") != sNaN", nan ## SUFFIX ("") != sNaN_var); \ + if (SNAN_TESTS (FLOAT)) \ + check (#FLOAT " nan (\"\") != -sNaN", \ + nan ## SUFFIX ("") != minus_sNaN_var); \ + \ + /* test if EPSILON is ok */ \ + x1 = 1.0; \ + x2 = x1 + EPSILON; \ + check (#FLOAT " 1 != 1+EPSILON", x1 != x2); \ + \ + x1 = 1.0; \ + x2 = x1 - EPSILON; \ + check (#FLOAT " 1 != 1-EPSILON", x1 != x2); \ + \ + /* test if HUGE_VALx is ok */ \ + x1 = HUGEVAL; \ + check (#FLOAT " isinf (HUGE_VALx) == +1", isinf (x1) == +1); \ + x1 = - HUGEVAL; \ + check (#FLOAT " isinf (-HUGE_VALx) == -1", isinf (x1) == -1); \ +} + +#define TEST_CONVERT(NAME, FLOAT, DOUBLE, SUFFIX) \ +void \ +NAME (void) \ +{ \ + volatile DOUBLE Inf_var, qNaN_var, zero_var, one_var; \ + /* A sNaN is only guaranteed to be representable in variables with */ \ + /* static (or thread-local) storage duration. */ \ + static volatile DOUBLE sNaN_var = __builtin_nans ## SUFFIX (""); \ + FLOAT x1, x2; \ + \ + zero_var = 0.0; \ + one_var = 1.0; \ + qNaN_var = __builtin_nan ## SUFFIX (""); \ + Inf_var = one_var / zero_var; \ + \ + (void) &qNaN_var; \ + (void) &sNaN_var; \ + (void) &Inf_var; \ + \ + x1 = (FLOAT) qNaN_var; \ + check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") qNaN, isnan", isnan (x1)); \ + check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") qNaN, !issignaling", \ + !issignaling (x1)); \ + if (SNAN_TESTS (FLOAT)) \ + { \ + x1 = (FLOAT) sNaN_var; \ + check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") sNaN, isnan", isnan (x1)); \ + if (SNAN_TESTS_TYPE_CAST) \ + { \ + /* Upon type conversion, a sNaN is converted into a qNaN plus an */ \ + /* INVALID exception (not checked here). */ \ + check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") sNaN, !issignaling", \ + !issignaling (x1)); \ + } \ + } \ + x2 = (FLOAT) Inf_var; \ + check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") Inf", isinf (x2) != 0); \ +} + +TEST_FUNC (float_test, float, f, FLT_EPSILON, HUGE_VALF) +TEST_FUNC (double_test, double, , DBL_EPSILON, HUGE_VAL) +TEST_CONVERT (convert_dfsf_test, float, double, ) +TEST_CONVERT (convert_sfdf_test, double, float, f) +#ifndef NO_LONG_DOUBLE +TEST_FUNC (ldouble_test, long double, l, LDBL_EPSILON, HUGE_VALL) +TEST_CONVERT (convert_tfsf_test, float, long double, l) +TEST_CONVERT (convert_sftf_test, long double, float, f) +TEST_CONVERT (convert_tfdf_test, double, long double, l) +TEST_CONVERT (convert_dftf_test, long double, double, ) +#endif + +int +do_test (void) +{ + float_test (); + double_test (); + convert_dfsf_test(); + convert_sfdf_test(); + +#ifndef NO_LONG_DOUBLE + ldouble_test (); + convert_tfsf_test(); + convert_sftf_test(); + convert_tfdf_test(); + convert_dftf_test(); +#endif + + return errors != 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |