1Code in this sub-directory should follow the GNU Coding Standard, but it is 2not expected to be upstreamed into glibc without modification, so 3glibc-specific conventions need not be followed. 4 5The requirements for portable code apply to non-portable code with the 6following differences: 7 81. Worst-case ULP error should be encoded in filenames (e.g. sin_u35.c). There 9 are no specific restrictions on acceptable ULP error, but if functions 10 provide significantly less accuracy than portable equivalents then a clear 11 justification for inclusion should be stated in comments at the top of the 12 source file. Error bounds of the approximation should be clearly documented 13 in comments. 14 152. Functions are assumed to support round-to-nearest mode by default, unless 16 stated; other rounding modes are not required to be provided. 17