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Remove "if and only if" language from [Raw]Span's _pointer field #84002

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Merged
merged 1 commit into from
Sep 3, 2025
Merged

Remove "if and only if" language from [Raw]Span's _pointer field #84002

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8 changes: 4 additions & 4 deletions stdlib/public/core/Span/RawSpan.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -30,10 +30,10 @@ public struct RawSpan: ~Escapable, Copyable, BitwiseCopyable {

/// The starting address of this `RawSpan`.
///
/// `_pointer` can be `nil` if and only if `_count` equals 0.
/// Otherwise, `_pointer` must point to memory that will remain
/// valid and not mutated as long as this `Span` exists.
/// The memory at `_pointer` must consist of `_count` initialized bytes.
/// If `_count` is zero, `_pointer` may point to valid memory or it may be `nil`,
/// but no accesses may be performed through it. Otherwise, `_pointer` must point
/// to initialized memory containing `_count` bytes, which must remain valid and
/// not be mutated during the lifetime of this `RawSpan`.
@usableFromInline
internal let _pointer: UnsafeRawPointer?

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9 changes: 4 additions & 5 deletions stdlib/public/core/Span/Span.swift
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Expand Up @@ -30,11 +30,10 @@ public struct Span<Element: ~Copyable>: ~Escapable, Copyable, BitwiseCopyable {

/// The starting address of this `Span`.
///
/// `_pointer` can be `nil` if and only if `_count` equals 0.
/// Otherwise, `_pointer` must point to memory that will remain
/// valid and not mutated as long as this `Span` exists.
/// The memory at `_pointer` must be initialized
/// as `_count` instances of `Element`.
/// If `_count` is zero, `_pointer` may point to valid memory or it may be `nil`,
/// but no accesses may be performed through it. Otherwise, `_pointer` must point
/// to initialized memory containing `_count` instances of `Element`, which must
/// remain valid and not be mutated during the lifetime of this `Span`.
@usableFromInline
internal let _pointer: UnsafeRawPointer?

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