cosmopolitan/libc/nexgen32e/wmemset.inc

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2020-06-15 14:18:57 +00:00
/*-*- 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
╚─────────────────────────────────────────────────────────────────────────────*/
/**
* Sets wide memory.
* @asyncsignalsafe
*/
optimizespeed T *wmemset(T *dest, T c, size_t count) {
T v[N];
size_t i, j;
for (i = 0; i < N; ++i) v[i] = c;
for (i = 0; i < count;) {
if (i + N <= count) {
for (j = 0; j < N; ++j) {
dest[i + j] = v[j];
}
i += N;
} else {
dest[i++] = c;
}
}
return dest;
}