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[optional.optional.ref.general] Fix indentation #8104

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[optional.optional.ref.general] Fix indentation #8104

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122 changes: 61 additions & 61 deletions source/utilities.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -4451,68 +4451,68 @@
namespace std {
template<class T>
class optional<T&> {
public:
using value_type = T;
using iterator = @\impdefnc@; // see~\ref{optional.ref.iterators}
public:
using value_type = T;
using iterator = @\impdefnc@; // see~\ref{optional.ref.iterators}

public:
// \ref{optional.ref.ctor}, constructors
constexpr optional() noexcept = default;
constexpr optional(nullopt_t) noexcept : optional() {}
constexpr optional(const optional& rhs) noexcept = default;

template<class Arg>
constexpr explicit optional(in_place_t, Arg&& arg);
template<class U>
constexpr explicit(@\seebelow@) optional(U&& u) noexcept(@\seebelow@);
template<class U>
constexpr explicit(@\seebelow@) optional(optional<U>& rhs) noexcept(@\seebelow@);
template<class U>
constexpr explicit(@\seebelow@) optional(const optional<U>& rhs) noexcept(@\seebelow@);
template<class U>
constexpr explicit(@\seebelow@) optional(optional<U>&& rhs) noexcept(@\seebelow@);
template<class U>
constexpr explicit(@\seebelow@) optional(const optional<U>&& rhs) noexcept(@\seebelow@);

constexpr ~optional() = default;

// \ref{optional.ref.assign}, assignment
constexpr optional& operator=(nullopt_t) noexcept;
constexpr optional& operator=(const optional& rhs) noexcept = default;

template<class U> constexpr T& emplace(U&& u) noexcept(@\seebelow@);

// \ref{optional.ref.swap}, swap
constexpr void swap(optional& rhs) noexcept;

// \ref{optional.iterators}, iterator support
constexpr iterator begin() const noexcept;
constexpr iterator end() const noexcept;

// \ref{optional.ref.observe}, observers
constexpr T* operator->() const noexcept;
constexpr T& operator*() const noexcept;
constexpr explicit operator bool() const noexcept;
constexpr bool has_value() const noexcept;
constexpr T& value() const; // freestanding-deleted
template<class U = remove_cv_t<T>>
constexpr remove_cv_t<T> value_or(U&& u) const;

// \ref{optional.ref.monadic}, monadic operations
template<class F> constexpr auto and_then(F&& f) const;
template<class F> constexpr optional<invoke_result_t<F, T&>> transform(F&& f) const;
template<class F> constexpr optional or_else(F&& f) const;

// \ref{optional.ref.mod}, modifiers
constexpr void reset() noexcept;

private:
T* @\exposidnc{val}@ = nullptr; // \expos

// \ref{optional.ref.expos}, exposition only helper functions
template<class U>
constexpr void @\exposidnc{convert-ref-init-val}@(U&& u); // \expos
};
public:
// \ref{optional.ref.ctor}, constructors
constexpr optional() noexcept = default;
constexpr optional(nullopt_t) noexcept : optional() {}
constexpr optional(const optional& rhs) noexcept = default;

template<class Arg>
constexpr explicit optional(in_place_t, Arg&& arg);
template<class U>
constexpr explicit(@\seebelow@) optional(U&& u) noexcept(@\seebelow@);
template<class U>
constexpr explicit(@\seebelow@) optional(optional<U>& rhs) noexcept(@\seebelow@);
template<class U>
constexpr explicit(@\seebelow@) optional(const optional<U>& rhs) noexcept(@\seebelow@);
template<class U>
constexpr explicit(@\seebelow@) optional(optional<U>&& rhs) noexcept(@\seebelow@);
template<class U>
constexpr explicit(@\seebelow@) optional(const optional<U>&& rhs) noexcept(@\seebelow@);

constexpr ~optional() = default;

// \ref{optional.ref.assign}, assignment
constexpr optional& operator=(nullopt_t) noexcept;
constexpr optional& operator=(const optional& rhs) noexcept = default;

template<class U> constexpr T& emplace(U&& u) noexcept(@\seebelow@);

// \ref{optional.ref.swap}, swap
constexpr void swap(optional& rhs) noexcept;

// \ref{optional.iterators}, iterator support
constexpr iterator begin() const noexcept;
constexpr iterator end() const noexcept;

// \ref{optional.ref.observe}, observers
constexpr T* operator->() const noexcept;
constexpr T& operator*() const noexcept;
constexpr explicit operator bool() const noexcept;
constexpr bool has_value() const noexcept;
constexpr T& value() const; // freestanding-deleted
template<class U = remove_cv_t<T>>
constexpr remove_cv_t<T> value_or(U&& u) const;

// \ref{optional.ref.monadic}, monadic operations
template<class F> constexpr auto and_then(F&& f) const;
template<class F> constexpr optional<invoke_result_t<F, T&>> transform(F&& f) const;
template<class F> constexpr optional or_else(F&& f) const;

// \ref{optional.ref.mod}, modifiers
constexpr void reset() noexcept;

private:
T* @\exposidnc{val}@ = nullptr; // \expos

// \ref{optional.ref.expos}, exposition only helper functions
template<class U>
constexpr void @\exposidnc{convert-ref-init-val}@(U&& u); // \expos
};
}
\end{codeblock}

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