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Re: Report bugs for variations in error handling in math functions?


I think the correct approach is to consider it a bug if functions do not set errno, or do not raise exceptions - that is, all of (b), (c) and (d) are bugs. This would allow math_errhandling to be MATH_ERRNO|MATH_ERREXCEPT unless translation units are compiled with options preventing this, and make the error handling options available consistent across the math.h functions supported by glibc. To conform with C99, at least one approach (errno or exceptions) must be consistently supported across all the functions, in any case.

I've reported bugs for all of the non-conformances I found.


Cheers,

Michael

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