Mercurial > trustbridge > nss-cmake-static
comparison nspr/pr/src/misc/prlog2.c @ 0:1e5118fa0cb1
This is NSS with a Cmake Buildsyste
To compile a static NSS library for Windows we've used the
Chromium-NSS fork and added a Cmake buildsystem to compile
it statically for Windows. See README.chromium for chromium
changes and README.trustbridge for our modifications.
| author | Andre Heinecke <andre.heinecke@intevation.de> |
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| date | Mon, 28 Jul 2014 10:47:06 +0200 |
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| -1:000000000000 | 0:1e5118fa0cb1 |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "prbit.h" | |
| 7 | |
| 8 /* | |
| 9 ** Compute the log of the least power of 2 greater than or equal to n | |
| 10 */ | |
| 11 PR_IMPLEMENT(PRIntn) PR_CeilingLog2(PRUint32 n) | |
| 12 { | |
| 13 PRIntn log2; | |
| 14 PR_CEILING_LOG2(log2, n); | |
| 15 return log2; | |
| 16 } | |
| 17 | |
| 18 /* | |
| 19 ** Compute the log of the greatest power of 2 less than or equal to n. | |
| 20 ** This really just finds the highest set bit in the word. | |
| 21 */ | |
| 22 PR_IMPLEMENT(PRIntn) PR_FloorLog2(PRUint32 n) | |
| 23 { | |
| 24 PRIntn log2; | |
| 25 PR_FLOOR_LOG2(log2, n); | |
| 26 return log2; | |
| 27 } |