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// Copyright 2018 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef __FUZZ_SPAN_H
#define __FUZZ_SPAN_H
#include <unistd.h>
#include <algorithm>
namespace fuzz {
template <typename T>
class span {
public:
typedef T value_type;
constexpr span() : span<T>(nullptr, nullptr) {}
constexpr span(T* begin, size_t size) : begin_(begin), end_(begin + size) {}
constexpr span(T* begin, T* end) : begin_(begin), end_(end) {}
template <class Container>
constexpr span(Container& container)
: begin_(container.begin()), end_(container.end()){};
constexpr T* begin() const { return begin_; }
constexpr T* end() const { return end_; }
constexpr T* data() const { return begin_; }
constexpr bool empty() const { return begin_ == end_; }
constexpr size_t size() const { return end_ - begin_; }
private:
T* begin_;
T* end_;
};
template <typename Source, typename Destination>
size_t CopyWithPadding(Source source,
Destination destination,
typename Destination::value_type fill_value) {
if (source.size() >= destination.size()) {
std::copy(source.begin(), source.begin() + destination.size(),
destination.begin());
return destination.size();
}
std::copy(source.begin(), source.end(), destination.begin());
std::fill(destination.begin() + source.size(), destination.end(), fill_value);
return source.size();
}
} // namespace fuzz
#endif // __FUZZ_SPAN_H
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