/*-*- 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/testlib/ezbench.h" #include "libc/testlib/testlib.h" #include "libc/x/x.h" #define hypotl(x, y) \ hypotl(VEIL("t", (long double)(x)), VEIL("t", (long double)(y))) #define hypot(x, y) hypot(VEIL("x", (double)(x)), VEIL("x", (double)(y))) #define hypotf(x, y) hypotf(VEIL("x", (float)(x)), VEIL("x", (float)(y))) 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))); }