digitalmars.D.bugs - [Issue 20284] New: CustomFloat.max_10_exp does not work for types
- d-bugmail puremagic.com (22/22) Oct 08 2019 https://issues.dlang.org/show_bug.cgi?id=20284
https://issues.dlang.org/show_bug.cgi?id=20284 Issue ID: 20284 Summary: CustomFloat.max_10_exp does not work for types with too many digits in exponent Product: D Version: D2 Hardware: x86_64 OS: All Status: NEW Severity: normal Priority: P1 Component: phobos Assignee: nobody puremagic.com Reporter: bugzilla d-ecke.de CustomFloat!(15, 16).max_10_exp == -2147483648 should be 9864. The reason is, that 16 bit exponents do not fit into real, which has only 15 bits on x86_64. It is probably possible to calculate the value without the need to convert to real, but the question is, if this is of any help. CustomFloats are used by converting to real, doing the calculation there, and then converting back. What I want to say, such CustomFloats cannot be used and maybe the solution is to restrict them to exponents with length less than that of real. --
Oct 08 2019