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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /third_party/libwebrtc/net/dcsctp/common/math.h | |
parent | Initial commit. (diff) | |
download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/net/dcsctp/common/math.h')
-rw-r--r-- | third_party/libwebrtc/net/dcsctp/common/math.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/common/math.h b/third_party/libwebrtc/net/dcsctp/common/math.h new file mode 100644 index 0000000000..12f690ed57 --- /dev/null +++ b/third_party/libwebrtc/net/dcsctp/common/math.h @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2021 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ +#ifndef NET_DCSCTP_COMMON_MATH_H_ +#define NET_DCSCTP_COMMON_MATH_H_ + +namespace dcsctp { + +// Rounds up `val` to the nearest value that is divisible by four. Frequently +// used to e.g. pad chunks or parameters to an even 32-bit offset. +template <typename IntType> +IntType RoundUpTo4(IntType val) { + return (val + 3) & ~3; +} + +// Similarly, rounds down `val` to the nearest value that is divisible by four. +template <typename IntType> +IntType RoundDownTo4(IntType val) { + return val & ~3; +} + +// Returns true if `val` is divisible by four. +template <typename IntType> +bool IsDivisibleBy4(IntType val) { + return (val & 3) == 0; +} + +} // namespace dcsctp + +#endif // NET_DCSCTP_COMMON_MATH_H_ |