mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-22 21:32:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Initial import

Browse source
This commit is contained in:
Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
14915 changed files with 590219 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

49
libc/runtime/findmapping.c Normal file
View file

@ -0,0 +1,49 @@
/*-*- 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 │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/runtime/mappings.h"
size_t findmapping_(int32_t k, const struct MemoryCoord *coords, size_t count) {
size_t l, r, m;
l = 0;
r = count;
while (l < r) {
m = (l + r) >> 1;
if (coords[m].x > k) {
r = m;
} else {
l = m + 1;
}
}
return l;
}
/**
* Returns appropriate rightmost index.
*/
size_t findmapping(int32_t k) {
return findmapping_(k, _mm.p, _mm.i);
}
/**
* Returns appropriate rightmost index.
*/
size_t pickmapping(int32_t k) {
return findmapping_(k, _mm.p, _mm.i);
}