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Re: fixed check for sinl in acinclude.m4
- To: libstdc++ at sourceware dot cygnus dot com
- Subject: Re: fixed check for sinl in acinclude.m4
- From: Benjamin Kosnik <bkoz at redhat dot com>
- Date: Fri, 23 Jun 2000 15:19:24 -0700 (PDT)
Just because the compiler can parse __builtinfoo, doesn't mean that it
does something optimal, or even anything more useful than bailing to the
appropriate libm function with it.
If builtins are going to use libm functions, there is no sense in using the
builtins, and the <math.h> and libm stuff should be used directly.
Where "no sense" is defined in a practical way, meaning performance increase
over increased configuration complexity.
later
benjamin