Add check for string size in ConvertToC function #8446
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Check for non-zero string size before copying.
calcmogul
reviewed
Dec 4, 2025
| std::memcpy(write, str.data(), str.size()); | ||
| size_t n = str.size(); | ||
| char* write = WPI_AllocateString(output, n); | ||
| if (n>0) |
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Our style guide requires curly braces on control flow statements.
Contributor
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What's the purpose of these check? It seems like this check is unnecessary: See https://stackoverflow.com/questions/3751797/can-i-call-memcpy-and-memmove-with-number-of-bytes-set-to-zero and others. |
Member
That post is only if both pointers are valid. Memcpy and memmove are UB if any of the pointers are null. Which an empty string view is. |
Contributor
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Ah, I missed that empty string views have |
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Check for non-zero string size before copying.