>>>>> "MvL" == Martin v Loewis <martin@v.loewis.de> writes: MvL> On a domain error, the function returns an MvL> implementation-defined value; if the integer expression MvL> math_errhandling & MATH_ERRNO is nonzero, the integer MvL> expression errno acquires the value EDOM; if the integer MvL> expression math_errhandling & MATH_ERREXCEPT is nonzero, MvL> the ``invalid'' floating-point exception is raised. MvL> but it comes from a draft only (99-04). If this is what C99 MvL> says, you actually can tell, in C, whether checking errno will MvL> help indicating the error. The final text also says this. (Setion 7.12.1.) Jeremy
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