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global: Use std::optional instead of boost::optional (#1578)

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* get rid of boost::optional

* Remove optional references

* Use std::reference_wrapper for optional references

* Fix clang format

* Fix clang format part 2

* Adressed feedback

* Fix clang format and MacOS build
This commit is contained in:
Frederic L 2018-10-30 05:03:25 +01:00 • committed by bunnei
parent adf26ae668
commit 7a5eda5914
49 changed files with 274 additions and 266 deletions
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8
src/core/file_sys/vfs.h
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@ -4,13 +4,15 @@
#pragma once
#include <functional>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <type_traits>
#include <vector>
#include <boost/optional.hpp>
#include "common/common_types.h"
#include "core/file_sys/vfs_types.h"
@ -103,8 +105,8 @@ public:
// into file. Returns number of bytes successfully written.
virtual std::size_t Write(const u8* data, std::size_t length, std::size_t offset = 0) = 0;
// Reads exactly one byte at the offset provided, returning boost::none on error.
virtual boost::optional<u8> ReadByte(std::size_t offset = 0) const;
// Reads exactly one byte at the offset provided, returning std::nullopt on error.
virtual std::optional<u8> ReadByte(std::size_t offset = 0) const;
// Reads size bytes starting at offset in file into a vector.
virtual std::vector<u8> ReadBytes(std::size_t size, std::size_t offset = 0) const;
// Reads all the bytes from the file into a vector. Equivalent to 'file->Read(file->GetSize(),