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Diffstat (limited to 'pl/README.contributors')
| -rw-r--r-- | pl/README.contributors | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/pl/README.contributors b/pl/README.contributors new file mode 100644 index 0000000..3af9b1f --- /dev/null +++ b/pl/README.contributors @@ -0,0 +1,23 @@ +Code in this sub-directory should follow the GNU Coding Standard, but it is +not expected to be upstreamed into glibc without modification, so +glibc-specific conventions need not be followed. + +The requirements for portable code apply to non-portable code with the +following differences: + + +1. Worst-case ULP error should be encoded in filenames (e.g. sin_u35.c). There + are no specific restrictions on acceptable ULP error, but if functions + provide significantly less accuracy than portable equivalents then a clear + justification for inclusion should be stated in comments at the top of the + source file. Error bounds of the approximation should be clearly documented + in comments. + +2. Functions are assumed to support round-to-nearest mode by default, unless + stated; other rounding modes are not required to be provided. + +3. Handling of special cases may be relaxed for vector functions. Checking + whether each vector lane contains special values such as NaN, Inf or + denormal numbers can prove too costly for vector functions. This is often + not required since vector functions are typically used along with aggressive + compiler optimization flags. |