cosmopolitan/test/libc/tinymath/fsum_test.c
2021-06-11 16:49:30 -07:00

54 lines
2.5 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/macros.internal.h"
#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"
#define N 100000
float F[N];
double D[N];
void SetUp(void) {
int i;
for (i = 0; i < N / 2; ++i) {
D[i * 2 + 0] = 1000000000.1;
D[i * 2 + 1] = 1.1;
}
for (i = 0; i < N / 2; ++i) {
F[i * 2 + 0] = 1000.1;
F[i * 2 + 1] = 1.1;
}
}
TEST(fsum, test) {
EXPECT_STREQ("500000000.6", gc(xasprintf("%.15g", fsum(D, N) / N)));
}
TEST(fsumf, test) {
EXPECT_STREQ("500.6", gc(xasprintf("%.7g", fsumf(F, N) / N)));
}
BENCH(fsum, bench) {
EZBENCH2("fsum", donothing, fsum(D, N));
EZBENCH2("fsumf", donothing, fsumf(F, N));
}