Re: Where are std::sinf( float ) etc.

[Ed Smith-Rowland <3dw4rd at verizon dot net>]

I'm sorry if my imprecise language got things off to a rocky start.

I was looking towards section 8 of TR1 and looking over where we were 
and what was left to do.  During the course of these investigations I 
was looking over how the standard library currently implements these 
functions.  I was surprised to see some of the TR1 items such as math 
function overloads and fpclassify and like template functions already 
implemented.  Now I understand the history (these were user-requested 
enhancements) and are separate from TR1 (although potentially useful).

My suggestion was NOT to add TR1 math functions to c_std/std_cmath.h but 
rather to create a new tr1/std_cmath.h with the TR1 math functions and 
all the overloads in a manner very similar to what is in 
c_std/std_cmath.h but in a separate location and under namespace 
std::tr1::. This left me with some questions:

  1. Given that some math functions from TR1 and the templates for
     fpclassify, isnan, etc. are already in as enhancemets should we
     either check off those parts of TR1 as "done" with a note in the
     manual that they are NOT in std::tr1:: but in std:: OR should we
     go ahead and re-implement those functions in a tr1/std_cmath.h and
     under std::tr1.  I guess I'm in favor of the latter.  Also,
     removing the existing enhancements would cause a lot of
     unnecessary heartache for the people that wanted tem in te first
     place.  It is very likely that they won't be extensions for much
     longer anyway.
  2. Where were the suffixed math functions?  Given the insistence in
     TR1 for suffixed versions of the new math functions in addition to
     the overloads I had assumed that the current standard required the
     current math functions to be available in suffixed versions.  Some
     sentence in the latest C++ draft left me with the impression that
     these were supposed to be in but I can't find what I was looking
     for now.  Anyway, I was evidently wrong although that would seem
     to me to imply that TR1 is either incomplete or inconsistent in
     this regard.

I hope this clarifies my earlier message.

Thanks,

Ed Smith-Rowland