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Add basic error handling #881

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@tygyh tygyh commented Sep 12, 2024

Prevents creating strings with negative length

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wolfpld commented Sep 12, 2024

What's the failure mode that these changes are protecting against?

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tygyh commented Sep 13, 2024

What's the failure mode that these changes are protecting against?

ftell returns -1L anytime it fails to load a file and sprintf returns -1 when it fails to print.
I hope I understood your question correctly.

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