54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
/* Copyright 2018 Dirk Steinke
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#ifndef PREFLATE_INPUT_H
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#define PREFLATE_INPUT_H
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#include <vector>
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class PreflateInput {
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public:
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PreflateInput(const std::vector<unsigned char>& v)
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: _data(v.size() > 0 ? &v[0] : nullptr), _size(v.size()), _pos(0) {}
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const unsigned pos() const {
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return _pos;
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}
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const unsigned size() const {
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return _size;
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}
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const unsigned char* curChars(int offset = 0) const {
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return _data + _pos + offset;
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}
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const unsigned char curChar(int offset = 0) const {
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return _data[_pos + offset];
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}
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void advance(const unsigned l) {
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_pos += l;
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}
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const unsigned remaining() const {
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return _size - _pos;
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}
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private:
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const unsigned char* _data;
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unsigned _size;
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unsigned _pos;
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};
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#endif /* PREFLATE_INPUT_H */
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