mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 12:03:41 +00:00
65 lines
3.5 KiB
C
65 lines
3.5 KiB
C
/*-*- 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/runtime/gc.internal.h"
|
|
#include "libc/testlib/ezbench.h"
|
|
#include "libc/testlib/testlib.h"
|
|
#include "libc/x/x.h"
|
|
|
|
TEST(trunc, test) {
|
|
EXPECT_STREQ("3", gc(xdtoa(trunc(3))));
|
|
EXPECT_STREQ("3", gc(xdtoa(trunc(3.14))));
|
|
EXPECT_STREQ("-3", gc(xdtoa(trunc(-3.14))));
|
|
EXPECT_STREQ("-0", gc(xdtoa(trunc(-0.))));
|
|
EXPECT_STREQ("NAN", gc(xdtoa(trunc(NAN))));
|
|
EXPECT_STREQ("-NAN", gc(xdtoa(trunc(-NAN))));
|
|
EXPECT_STREQ("INFINITY", gc(xdtoa(trunc(INFINITY))));
|
|
EXPECT_STREQ("-INFINITY", gc(xdtoa(trunc(-INFINITY))));
|
|
}
|
|
|
|
TEST(truncf, test) {
|
|
EXPECT_STREQ("3", gc(xdtoaf(truncf(3))));
|
|
EXPECT_STREQ("3", gc(xdtoaf(truncf(3.14))));
|
|
EXPECT_STREQ("-3", gc(xdtoaf(truncf(-3.14))));
|
|
EXPECT_STREQ("-0", gc(xdtoaf(truncf(-0.))));
|
|
EXPECT_STREQ("NAN", gc(xdtoaf(truncf(NAN))));
|
|
EXPECT_STREQ("-NAN", gc(xdtoaf(truncf(-NAN))));
|
|
EXPECT_STREQ("INFINITY", gc(xdtoaf(truncf(INFINITY))));
|
|
EXPECT_STREQ("-INFINITY", gc(xdtoaf(truncf(-INFINITY))));
|
|
}
|
|
|
|
TEST(truncl, test) {
|
|
EXPECT_STREQ("3", gc(xdtoal(truncl(3))));
|
|
EXPECT_STREQ("3", gc(xdtoal(truncl(3.14))));
|
|
EXPECT_STREQ("-3", gc(xdtoal(truncl(-3.14))));
|
|
EXPECT_STREQ("-0", gc(xdtoal(truncl(-0.))));
|
|
EXPECT_STREQ("NAN", gc(xdtoal(truncl(NAN))));
|
|
EXPECT_STREQ("-NAN", gc(xdtoal(truncl(-NAN))));
|
|
EXPECT_STREQ("INFINITY", gc(xdtoal(truncl(INFINITY))));
|
|
EXPECT_STREQ("-INFINITY", gc(xdtoal(truncl(-INFINITY))));
|
|
}
|
|
|
|
BENCH(truncl, bench) {
|
|
double _trunc(double) asm("trunc");
|
|
float _truncf(float) asm("truncf");
|
|
long double _truncl(long double) asm("truncl");
|
|
EZBENCH2("trunc", donothing, _trunc(.7)); /* ~2ns */
|
|
EZBENCH2("truncf", donothing, _truncf(.7)); /* ~2ns */
|
|
EZBENCH2("truncl", donothing, _truncl(.7)); /* ~9ns */
|
|
}
|