From 05edbffcd49b284a6fbedb15f10e2c67eb4b4f17 Mon Sep 17 00:00:00 2001 From: Bruno Haible Date: Mon, 25 Jan 2010 02:14:54 +0100 Subject: [PATCH] Tests for module 'modf'. --- ChangeLog | 4 ++++ modules/modf-tests | 13 +++++++++++++ tests/test-modf.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 65 insertions(+) create mode 100644 modules/modf-tests create mode 100644 tests/test-modf.c diff --git a/ChangeLog b/ChangeLog index a855189766..e62408c2dc 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2010-01-24 Bruno Haible + Tests for module 'modf'. + * modules/modf-tests: New file. + * tests/test-modf.c: New file. + Tests for module 'logb'. * modules/logb-tests: New file. * tests/test-logb.c: New file. diff --git a/modules/modf-tests b/modules/modf-tests new file mode 100644 index 0000000000..24e483df82 --- /dev/null +++ b/modules/modf-tests @@ -0,0 +1,13 @@ +Files: +tests/test-modf.c +tests/signature.h +tests/macros.h + +Depends-on: + +configure.ac: + +Makefile.am: +TESTS += test-modf +check_PROGRAMS += test-modf +test_modf_LDADD = $(LDADD) @MODF_LIBM@ diff --git a/tests/test-modf.c b/tests/test-modf.c new file mode 100644 index 0000000000..754a729c42 --- /dev/null +++ b/tests/test-modf.c @@ -0,0 +1,48 @@ +/* Test of modf() function. + Copyright (C) 2010 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 . */ + +/* Written by Bruno Haible , 2010. */ + +#include + +#include + +#include "signature.h" +SIGNATURE_CHECK (modf, double, (double, double *)); + +#include "macros.h" + +volatile double x; +double y; +double z; + +int +main () +{ + /* A particular positive value. */ + x = 5.972406760; + y = modf (x, &z); + ASSERT (y >= 0.972406759 && y <= 0.972406761); + ASSERT (z == 5.0); + + /* A particular negative value. */ + x = -5.972406760; + y = modf (x, &z); + ASSERT (y >= -0.972406761 && y <= 0.972406759); + ASSERT (z == -5.0); + + return 0; +} -- 2.30.2