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AK: Span: Allow slicing with zero length.

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Previously, the following would not work:

    Bytes{}.slice(0);

because it was asserted that `start < size()`.
This commit is contained in:
asynts 2020-08-18 18:02:04 +02:00 committed by Andreas Kling
parent 413db2d6d5
commit df21487794
Notes: sideshowbarker 2024-07-19 03:24:36 +09:00 
Author: https://github.com/asynts
Commit: https://github.com/SerenityOS/serenity/commit/df21487794d
Pull-request: https://github.com/SerenityOS/serenity/pull/3220
Reviewed-by: https://github.com/awesomekling
1 changed files with 10 additions and 6 deletions
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16
AK/Span.h
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@ -142,16 +142,20 @@ public:
ALWAYS_INLINE bool is_empty() const { return this->m_size == 0; }
ALWAYS_INLINE Span slice(size_t start, size_t size) const
ALWAYS_INLINE Span slice(size_t start, size_t length) const
{
ASSERT(start + size <= this->m_size);
return { this->m_values + start, size };
ASSERT(start + length <= size());
return { this->m_values + start, length };
}
ALWAYS_INLINE Span slice(size_t start) const
{
ASSERT(start < this->m_size);
return { this->m_values + start, this->m_size - start };
ASSERT(start <= size());
return { this->m_values + start, size() - start };
}
ALWAYS_INLINE Span trim(size_t length) const
{
return { this->m_values, min(size(), length) };
}
ALWAYS_INLINE T* offset(size_t start) const