jvkersch/bad.c

Last active March 29, 2020 10:05

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Bug in Apple's vecLib (OS X < 10.10)

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bad.c

/* proof-of-concept incorrect */

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jvkersch commented Mar 27, 2020 •

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@matcross Thanks for the clarification, you're right. Out of curiosity, what led you to this gist? In any case, I will edit the gist to indicate that the code is incorrect.

matcross commented Mar 27, 2020

Out of curiosity, what led you to this gist?

Hi, it was through Google. I was looking into some problems at NAG building our numerical libraries against vecLib. I think the search might have been 'Apple vecLib sdot' - I'd forgotten that the g77 convention did this to float-valued functions...

Author

jvkersch commented Mar 29, 2020

I've checked my notes from that time, and I was trying to debug a similar issue (with NumPy indirectly calling into vecLib).

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