From e3da3efc69d303ec0ddf2af3cc9811a2a4d16195 Mon Sep 17 00:00:00 2001 From: Bruno Haible Date: Mon, 25 Jan 2010 02:01:07 +0100 Subject: [PATCH] Tests for module 'atan2'. --- ChangeLog | 4 ++++ modules/atan2-tests | 13 ++++++++++++ tests/test-atan2.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 77 insertions(+) create mode 100644 modules/atan2-tests create mode 100644 tests/test-atan2.c diff --git a/ChangeLog b/ChangeLog index db76dac03..052bde535 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2010-01-24 Bruno Haible + Tests for module 'atan2'. + * modules/atan2-tests: New file. + * tests/test-atan2.c: New file. + Tests for module 'atan'. * modules/atan-tests: New file. * tests/test-atan.c: New file. diff --git a/modules/atan2-tests b/modules/atan2-tests new file mode 100644 index 000000000..08ca36740 --- /dev/null +++ b/modules/atan2-tests @@ -0,0 +1,13 @@ +Files: +tests/test-atan2.c +tests/signature.h +tests/macros.h + +Depends-on: + +configure.ac: + +Makefile.am: +TESTS += test-atan2 +check_PROGRAMS += test-atan2 +test_atan2_LDADD = $(LDADD) @ATAN2_LIBM@ diff --git a/tests/test-atan2.c b/tests/test-atan2.c new file mode 100644 index 000000000..07022c71f --- /dev/null +++ b/tests/test-atan2.c @@ -0,0 +1,60 @@ +/* Test of atan2() 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 (atan2, double, (double, double)); + +#include "macros.h" + +volatile double x; +volatile double y; +double z; + +int +main () +{ + /* A particular value in the first quadrant. */ + x = 0.6; + y = 0.8; + z = atan2 (y, x); + ASSERT (z >= 0.9272952180 && z <= 0.9272952181); + + /* A particular value in the second quadrant. */ + x = -0.6; + y = 0.8; + z = atan2 (y, x); + ASSERT (z >= 2.214297435 && z <= 2.214297436); + + /* A particular value in the third quadrant. */ + x = -0.6; + y = -0.8; + z = atan2 (y, x); + ASSERT (z >= -2.214297436 && z <= -2.214297435); + + /* A particular value in the fourth quadrant. */ + x = 0.6; + y = -0.8; + z = atan2 (y, x); + ASSERT (z >= -0.9272952181 && z <= -0.9272952180); + + return 0; +} -- 2.11.0