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cosmopolitan/test/libc/tinymath/hypot_test.c
Justine Tunney 7e0a09feec
Mint APE Loader v1.5 
This change ports APE Loader to Linux AARCH64, so that Raspberry Pi
users can run programs like redbean, without the executable needing
to modify itself. Progress has also slipped into this change on the
issue of making progress better conforming to user expectations and
industry standards regarding which symbols we're allowed to declare
2023-07-26 13:54:49 -07:00

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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 2021 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/math.h"
#include "libc/mem/gc.internal.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
double _hypot(double, double) asm("hypot");
float _hypotf(float, float) asm("hypotf");
long double _hypotl(long double, long double) asm("hypotl");
TEST(hypot, test) {
EXPECT_STREQ("0", gc(xdtoa(_hypot(0, 0))));
EXPECT_STREQ("3", gc(xdtoa(_hypot(3, 0))));
EXPECT_STREQ("3", gc(xdtoa(_hypot(0, 3))));
EXPECT_STREQ("5", gc(xdtoa(_hypot(3, 4))));
EXPECT_STREQ("5", gc(xdtoa(_hypot(4, 3))));
EXPECT_STREQ("5", gc(xdtoa(_hypot(3, -4))));
EXPECT_STREQ("5", gc(xdtoa(_hypot(-4, 3))));
EXPECT_STREQ("5", gc(xdtoa(_hypot(-3, 4))));
EXPECT_STREQ("5", gc(xdtoa(_hypot(4, -3))));
EXPECT_STREQ("5", gc(xdtoa(_hypot(-3, -4))));
EXPECT_STREQ("5", gc(xdtoa(_hypot(-4, -3))));
EXPECT_STREQ("1.4142135623731", gc(xdtoa(_hypot(1, 1))));
EXPECT_STREQ("1.4142135623731", gc(xdtoa(_hypot(1, -1))));
EXPECT_STREQ("1.4142135623731", gc(xdtoa(_hypot(-1, 1))));
EXPECT_STREQ("1.41421362601271", gc(xdtoa(_hypot(1.0000001, .99999999))));
EXPECT_STREQ("1.41421362601271", gc(xdtoa(_hypot(.99999999, 1.0000001))));
EXPECT_STREQ("1.4142135623731e+154", gc(xdtoa(_hypot(1e154, 1e154))));
EXPECT_STREQ("NAN", gc(xdtoa(_hypot(0, NAN))));
EXPECT_STREQ("NAN", gc(xdtoa(_hypot(NAN, 0))));
EXPECT_STREQ("NAN", gc(xdtoa(_hypot(NAN, NAN))));
EXPECT_STREQ("INFINITY", gc(xdtoa(_hypot(INFINITY, 0))));
EXPECT_STREQ("INFINITY", gc(xdtoa(_hypot(0, INFINITY))));
EXPECT_STREQ("INFINITY", gc(xdtoa(_hypot(INFINITY, NAN))));
EXPECT_STREQ("INFINITY", gc(xdtoa(_hypot(NAN, INFINITY))));
EXPECT_STREQ("INFINITY", gc(xdtoa(_hypot(INFINITY, INFINITY))));
}
TEST(hypotf, test) {
EXPECT_STREQ("0", gc(xdtoa(_hypotf(0, 0))));
EXPECT_STREQ("3", gc(xdtoa(_hypotf(3, 0))));
EXPECT_STREQ("3", gc(xdtoa(_hypotf(0, 3))));
EXPECT_STREQ("5", gc(xdtoa(_hypotf(3, 4))));
EXPECT_STREQ("5", gc(xdtoa(_hypotf(4, 3))));
EXPECT_STREQ("5", gc(xdtoa(_hypotf(3, -4))));
EXPECT_STREQ("5", gc(xdtoa(_hypotf(-4, 3))));
EXPECT_STREQ("5", gc(xdtoa(_hypotf(-3, 4))));
EXPECT_STREQ("5", gc(xdtoa(_hypotf(4, -3))));
EXPECT_STREQ("5", gc(xdtoa(_hypotf(-3, -4))));
EXPECT_STREQ("5", gc(xdtoa(_hypotf(-4, -3))));
EXPECT_STREQ("1.41421", gc(xdtoaf(_hypotf(1, 1))));
EXPECT_STREQ("1.41421", gc(xdtoaf(_hypotf(1, -1))));
EXPECT_STREQ("1.41421", gc(xdtoaf(_hypotf(-1, 1))));
EXPECT_STREQ("1.41421", gc(xdtoaf(_hypotf(1.000001, 0.999999))));
EXPECT_STREQ("1.41421", gc(xdtoaf(_hypotf(0.999999, 1.000001))));
EXPECT_STREQ("1.41421e+38", gc(xdtoaf(_hypotf(1e38, 1e38))));
EXPECT_STREQ("NAN", gc(xdtoaf(_hypotf(0, NAN))));
EXPECT_STREQ("NAN", gc(xdtoaf(_hypotf(NAN, 0))));
EXPECT_STREQ("NAN", gc(xdtoaf(_hypotf(NAN, NAN))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(_hypotf(INFINITY, 0))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(_hypotf(0, INFINITY))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(_hypotf(INFINITY, NAN))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(_hypotf(NAN, INFINITY))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(_hypotf(INFINITY, INFINITY))));
}
TEST(hypotll, test) {
EXPECT_STREQ("0", gc(xdtoal(_hypotl(0, 0))));
EXPECT_STREQ("3", gc(xdtoal(_hypotl(3, 0))));
EXPECT_STREQ("3", gc(xdtoal(_hypotl(0, 3))));
EXPECT_STREQ("5", gc(xdtoal(_hypotl(3, 4))));
EXPECT_STREQ("5", gc(xdtoal(_hypotl(4, 3))));
EXPECT_STREQ("5", gc(xdtoal(_hypotl(3, -4))));
EXPECT_STREQ("5", gc(xdtoal(_hypotl(-4, 3))));
EXPECT_STREQ("5", gc(xdtoal(_hypotl(-3, 4))));
EXPECT_STREQ("5", gc(xdtoal(_hypotl(4, -3))));
EXPECT_STREQ("5", gc(xdtoal(_hypotl(-3, -4))));
EXPECT_STREQ("5", gc(xdtoal(_hypotl(-4, -3))));
EXPECT_STREQ("1.414213562373095", gc(xdtoal(_hypotl(1, 1))));
EXPECT_STREQ("1.414213562373095", gc(xdtoal(_hypotl(1, -1))));
EXPECT_STREQ("1.414213562373095", gc(xdtoal(_hypotl(-1, 1))));
EXPECT_STREQ("1.414213626012708", gc(xdtoal(_hypotl(1.0000001, .99999999))));
EXPECT_STREQ("1.414213626012708", gc(xdtoal(_hypotl(.99999999, 1.0000001))));
EXPECT_STREQ("1.414213562373095e+4931",
gc(xdtoal(_hypotl(1e4931L, 1e4931L))));
EXPECT_STREQ("NAN", gc(xdtoal(_hypotl(0, NAN))));
EXPECT_STREQ("NAN", gc(xdtoal(_hypotl(NAN, 0))));
EXPECT_STREQ("NAN", gc(xdtoal(_hypotl(NAN, NAN))));
EXPECT_STREQ("INFINITY", gc(xdtoal(_hypotl(INFINITY, 0))));
EXPECT_STREQ("INFINITY", gc(xdtoal(_hypotl(0, INFINITY))));
EXPECT_STREQ("INFINITY", gc(xdtoal(_hypotl(INFINITY, NAN))));
EXPECT_STREQ("INFINITY", gc(xdtoal(_hypotl(NAN, INFINITY))));
EXPECT_STREQ("INFINITY", gc(xdtoal(_hypotl(INFINITY, INFINITY))));
}
/*
_hypot (musl) l: 53𝑐 17𝑛𝑠 m: 85𝑐 27𝑛𝑠
_hypot l: 39𝑐 13𝑛𝑠 m: 66𝑐 21𝑛𝑠
_hypotf l: 25𝑐 8𝑛𝑠 m: 55𝑐 18𝑛𝑠
_hypotl l: 43𝑐 14𝑛𝑠 m: 74𝑐 24𝑛𝑠
*/
BENCH(_hypot, bench) {
volatile double a = 2;
volatile double b = 3;
EZBENCH2("hypotf", donothing, __expropriate(_hypotf(a, b)));
EZBENCH2("hypot", donothing, __expropriate(_hypot(a, b)));
EZBENCH2("hypotl", donothing, __expropriate(_hypotl(a, b)));
}
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