Mercurial > gnulib
view tests/test-rintf.c @ 40231:9b3c79fdfe0b
strtod: fix clash with strtold
Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817).
* lib/strtod.c (compute_minus_zero, minus_zero):
Simplify by remving the macro / external variable,
and having just a function. User changed. This avoids
the need for an external variable that might clash.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Mon, 11 Mar 2019 16:40:29 -0700 |
parents | b06060465f09 |
children |
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/* Test of rintf() function. Copyright (C) 2010-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* Written by Bruno Haible <bruno@clisp.org>, 2010. */ #include <config.h> #include <math.h> #include "signature.h" SIGNATURE_CHECK (rintf, float, (float)); #include <float.h> #include <stdio.h> #include "isnanf-nolibm.h" #include "minus-zero.h" #include "infinity.h" #include "nan.h" #include "macros.h" #undef INFINITY #undef NAN #define DOUBLE float #define ISNAN isnanf #define INFINITY Infinityf () #define NAN NaNf () #define L_(literal) literal##f #define RINT rintf #define RANDOM randomf #include "test-rint.h" int main () { /* Consider the current rounding mode, cf. <http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/float.h.html> */ if (FLT_ROUNDS == 1) { /* The current rounding mode is round-to-nearest (the default in IEEE 754). */ /* Zero. */ ASSERT (rintf (0.0f) == 0.0f); ASSERT (rintf (minus_zerof) == 0.0f); /* Positive numbers. */ ASSERT (rintf (0.3f) == 0.0f); ASSERT (rintf (0.5f) == 0.0f); /* unlike roundf() */ ASSERT (rintf (0.7f) == 1.0f); ASSERT (rintf (1.0f) == 1.0f); ASSERT (rintf (1.5f) == 2.0f); ASSERT (rintf (1.999f) == 2.0f); ASSERT (rintf (2.0f) == 2.0f); ASSERT (rintf (2.1f) == 2.0f); ASSERT (rintf (2.5f) == 2.0f); /* unlike roundf() */ ASSERT (rintf (2.7f) == 3.0f); ASSERT (rintf (65535.99f) == 65536.0f); ASSERT (rintf (65536.0f) == 65536.0f); ASSERT (rintf (65536.01f) == 65536.0f); ASSERT (rintf (2.341e31f) == 2.341e31f); /* Negative numbers. */ ASSERT (rintf (-0.3f) == 0.0f); ASSERT (rintf (-0.5f) == 0.0f); /* unlike roundf() */ ASSERT (rintf (-0.7f) == -1.0f); ASSERT (rintf (-1.0f) == -1.0f); ASSERT (rintf (-1.5f) == -2.0f); ASSERT (rintf (-1.999f) == -2.0f); ASSERT (rintf (-2.0f) == -2.0f); ASSERT (rintf (-2.1f) == -2.0f); ASSERT (rintf (-2.5f) == -2.0f); /* unlike roundf() */ ASSERT (rintf (-2.7f) == -3.0f); ASSERT (rintf (-65535.99f) == -65536.0f); ASSERT (rintf (-65536.0f) == -65536.0f); ASSERT (rintf (-65536.01f) == -65536.0f); ASSERT (rintf (-2.341e31f) == -2.341e31f); test_function (); return 0; } else { fputs ("Skipping test: non-standard rounding mode\n", stderr); return 77; } }