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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ 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; version 2 of the License. │
│ │
│ 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, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/math.h"
#include "libc/runtime/gc.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
TEST(round, test) {
EXPECT_STREQ("-3", gc(xdtoa(round(-2.5))));
EXPECT_STREQ("-2", gc(xdtoa(round(-1.5))));
EXPECT_STREQ("-1", gc(xdtoa(round(-.5))));
EXPECT_STREQ("1", gc(xdtoa(round(.5))));
EXPECT_STREQ("2", gc(xdtoa(round(1.5))));
EXPECT_STREQ("3", gc(xdtoa(round(2.5))));
}
TEST(round, testCornerCases) {
EXPECT_STREQ("-0", gc(xdtoa(round(-0.0))));
EXPECT_STREQ("nan", gc(xdtoa(round(NAN))));
EXPECT_STREQ("-nan", gc(xdtoa(round(-NAN))));
EXPECT_STREQ("inf", gc(xdtoa(round(INFINITY))));
EXPECT_STREQ("-inf", gc(xdtoa(round(-INFINITY))));
}
TEST(lround, test) {
EXPECT_EQ(-3, lround(-2.5));
EXPECT_EQ(-2, lround(-1.5));
EXPECT_EQ(-1, lround(-.5));
EXPECT_EQ(0, lround(-.0));
EXPECT_EQ(1, lround(.5));
EXPECT_EQ(2, lround(1.5));
EXPECT_EQ(3, lround(2.5));
}
TEST(roundf, test) {
EXPECT_STREQ("-3", gc(xdtoa(roundf(-2.5))));
EXPECT_STREQ("-2", gc(xdtoa(roundf(-1.5))));
EXPECT_STREQ("-1", gc(xdtoa(roundf(-.5))));
EXPECT_STREQ("1", gc(xdtoa(roundf(.5))));
EXPECT_STREQ("2", gc(xdtoa(roundf(1.5))));
EXPECT_STREQ("3", gc(xdtoa(roundf(2.5))));
}
TEST(roundf, testCornerCases) {
EXPECT_STREQ("-0", gc(xdtoa(roundf(-0.0))));
EXPECT_STREQ("nan", gc(xdtoa(roundf(NAN))));
EXPECT_STREQ("-nan", gc(xdtoa(roundf(-NAN))));
EXPECT_STREQ("inf", gc(xdtoa(roundf(INFINITY))));
EXPECT_STREQ("-inf", gc(xdtoa(roundf(-INFINITY))));
}
TEST(lroundf, test) {
EXPECT_EQ(-3, lroundf(-2.5));
EXPECT_EQ(-2, lroundf(-1.5));
EXPECT_EQ(-1, lroundf(-.5));
EXPECT_EQ(0, lroundf(-.0));
EXPECT_EQ(1, lroundf(.5));
EXPECT_EQ(2, lroundf(1.5));
EXPECT_EQ(3, lroundf(2.5));
}