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// Copyright 2018 The ChromiumOS Authors
// 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 <algorithm>
#include <unistd.h>
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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