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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/stllike/string.h>
#include <ostream>
namespace vespalib {
/**
* Simple wrapper referencing a read-only region of memory.
**/
struct Memory
{
const char *data;
size_t size;
Memory() noexcept : data(nullptr), size(0) {}
Memory(const char *d, size_t s) noexcept : data(d), size(s) {}
Memory(const char *str) noexcept : data(str), size(strlen(str)) {}
Memory(const std::string &str) noexcept
: data(str.data()), size(str.size()) {}
Memory(const vespalib::string &str) noexcept
: data(str.data()), size(str.size()) {}
Memory(vespalib::stringref str_ref) noexcept
: data(str_ref.data()), size(str_ref.size()) {}
vespalib::string make_string() const;
vespalib::stringref make_stringref() const { return stringref(data, size); }
bool operator == (const Memory &rhs) const noexcept {
if (size != rhs.size) {
return false;
}
if ((size == 0) || (data == rhs.data)) {
return true;
}
return (memcmp(data, rhs.data, size) == 0);
}
};
std::ostream &operator<<(std::ostream &os, const Memory &memory);
} // namespace vespalib
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