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Added a CopyCharSpanToMutableCharSpanTruncate function. #35360

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merged 4 commits into from
Sep 4, 2024
Merged

Added a CopyCharSpanToMutableCharSpanTruncate function. #35360

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11401a0
Added a CopyCharSpanToMutableCharSpanTruncate function.
hicklin Sep 2, 2024
0416175
Applied minor renaming suggestion.
hicklin Sep 3, 2024
10c65f5
Apply suggestions from code review
hicklin Sep 4, 2024
7e7d65c
Update src/lib/support/Span.h
hicklin Sep 4, 2024
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14 changes: 14 additions & 0 deletions src/lib/support/Span.h
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Original file line number Diff line number Diff line change
Expand Up @@ -390,4 +390,18 @@ inline CHIP_ERROR CopyCharSpanToMutableCharSpan(CharSpan cspan_to_copy, MutableC
return CHIP_NO_ERROR;
}

/**
* Copies a CharSpan into a MutableCharSpan.
* If the span_to_copy does not if in out_span, span_to_copy in truncated to fit in out_span.
* @param span_to_copy The CharSpan to copy.
* @param out_span The MutableCharSpan in which span_to_copy is to be copied.
*/
inline void CopyCharSpanToMutableCharSpanTruncate(CharSpan span_to_copy, MutableCharSpan & out_span)
{
size_t size_to_copy = std::min(span_to_copy.size(), out_span.size());

memcpy(out_span.data(), span_to_copy.data(), size_to_copy);
out_span.reduce_size(size_to_copy);
}

} // namespace chip
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