net/der/tag.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/logging.h"
   6 #include "net/der/tag.h"
   7
   8 namespace net {
   9
  10 namespace der {
  11
  12 Tag ContextSpecificConstructed(uint8_t class_number) {
  13   DCHECK_EQ(class_number, class_number & kTagNumberMask);
  14   return (class_number & kTagNumberMask) | kTagConstructed |
  15          kTagContextSpecific;
  16 }
  17
  18 Tag ContextSpecificPrimitive(uint8_t base) {
  19   DCHECK_EQ(base, base & kTagNumberMask);
  20   return (base & kTagNumberMask) | kTagPrimitive | kTagContextSpecific;
  21 }
  22
  23 bool IsConstructed(Tag tag) {
  24   return (tag & kTagConstructionMask) == kTagConstructed;
  25 }
  26
  27 }  // namespace der
  28
  29 }  // namespace net