dd936b27fc
values in more detail, and change the style of this comment to be closer to fdlibm and C99: - tgamma(-Inf) was undocumented and is wrong (+Inf, should be NaN) - tgamma(negative integer) is as intended (+Inf) but not best for IEEE-754 (NaN) - tgamma(-0) was documented as being wrong (+Inf) but was correct (-Inf) - documentation of setting of exceptions (overflow, etc.) was more complete here than in most of libm, but was further from matching the actual setting than in most of libm, due to various bugs here (primarily, always evaluating +Inf one/zero and getting unwanted divide-by-zero exceptions from this). Now the actual behaviour with gcc -O0 is documented. Optimization still breaks setting of exceptions all over libm, so nothing can depend on this working. - tgamma(NaN)'s exception was documented as being wrong (invalid) but was correct (no exception with IEEEish NaNs). Finish (?) rev.1.5. gamma was not renamed to tgamma in one place. Finish (?) rev.1.6. errno.h was not completely removed. |
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