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77 lines
3.6 KiB
77 lines
3.6 KiB
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│ |
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│ |
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╞══════════════════════════════════════════════════════════════════════════════╡ |
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│ Copyright 2020 Justine Alexandra Roberts Tunney │ |
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│ │ |
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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; version 2 of the License. │ |
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│ │ |
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│ This program is distributed in the hope that it will be useful, but │ |
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │ |
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │ |
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│ General Public License for more details. │ |
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│ │ |
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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, write to the Free Software │ |
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │ |
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│ 02110-1301 USA │ |
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╚─────────────────────────────────────────────────────────────────────────────*/ |
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#include "libc/math.h" |
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#include "libc/runtime/gc.h" |
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#include "libc/testlib/testlib.h" |
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#include "libc/x/x.h" |
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TEST(round, test) { |
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EXPECT_STREQ("-3", gc(xdtoa(round(-2.5)))); |
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EXPECT_STREQ("-2", gc(xdtoa(round(-1.5)))); |
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EXPECT_STREQ("-1", gc(xdtoa(round(-.5)))); |
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EXPECT_STREQ("1", gc(xdtoa(round(.5)))); |
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EXPECT_STREQ("2", gc(xdtoa(round(1.5)))); |
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EXPECT_STREQ("3", gc(xdtoa(round(2.5)))); |
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} |
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TEST(round, testCornerCases) { |
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EXPECT_STREQ("-0", gc(xdtoa(round(-0.0)))); |
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EXPECT_STREQ("nan", gc(xdtoa(round(NAN)))); |
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EXPECT_STREQ("-nan", gc(xdtoa(round(-NAN)))); |
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EXPECT_STREQ("inf", gc(xdtoa(round(INFINITY)))); |
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EXPECT_STREQ("-inf", gc(xdtoa(round(-INFINITY)))); |
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} |
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TEST(lround, test) { |
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EXPECT_EQ(-3, lround(-2.5)); |
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EXPECT_EQ(-2, lround(-1.5)); |
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EXPECT_EQ(-1, lround(-.5)); |
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EXPECT_EQ(0, lround(-.0)); |
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EXPECT_EQ(1, lround(.5)); |
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EXPECT_EQ(2, lround(1.5)); |
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EXPECT_EQ(3, lround(2.5)); |
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} |
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TEST(roundf, test) { |
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EXPECT_STREQ("-3", gc(xdtoa(roundf(-2.5)))); |
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EXPECT_STREQ("-2", gc(xdtoa(roundf(-1.5)))); |
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EXPECT_STREQ("-1", gc(xdtoa(roundf(-.5)))); |
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EXPECT_STREQ("1", gc(xdtoa(roundf(.5)))); |
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EXPECT_STREQ("2", gc(xdtoa(roundf(1.5)))); |
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EXPECT_STREQ("3", gc(xdtoa(roundf(2.5)))); |
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} |
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TEST(roundf, testCornerCases) { |
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EXPECT_STREQ("-0", gc(xdtoa(roundf(-0.0)))); |
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EXPECT_STREQ("nan", gc(xdtoa(roundf(NAN)))); |
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EXPECT_STREQ("-nan", gc(xdtoa(roundf(-NAN)))); |
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EXPECT_STREQ("inf", gc(xdtoa(roundf(INFINITY)))); |
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EXPECT_STREQ("-inf", gc(xdtoa(roundf(-INFINITY)))); |
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} |
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TEST(lroundf, test) { |
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EXPECT_EQ(-3, lroundf(-2.5)); |
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EXPECT_EQ(-2, lroundf(-1.5)); |
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EXPECT_EQ(-1, lroundf(-.5)); |
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EXPECT_EQ(0, lroundf(-.0)); |
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EXPECT_EQ(1, lroundf(.5)); |
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EXPECT_EQ(2, lroundf(1.5)); |
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EXPECT_EQ(3, lroundf(2.5)); |
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}
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