XGitUrl: http://git.csclub.uwaterloo.ca/?p=kopensolarisgnu%2Fglibc.git;a=blobdiff_plain;f=PROJECTS;h=f4cadfdeb438a5891fee556a4cd7ac52b458aa0c;hp=9be423e1cef0cde3e15018913e24ebc8ae507af7;hb=f012b5b9dd1b2d99785b6a5179bd6dd9f56980ab;hpb=24d32fe6b62372ebbf932ae0318dd4f32e3e7db3
diff git a/PROJECTS b/PROJECTS
index 9be423e1ce..f4cadfdeb4 100644
 a/PROJECTS
+++ b/PROJECTS
@@ 57,39 +57,12 @@ contact
[ 7] Several math functions have to be written:
 exp2
  nearbyint
  ceil
  round
  rinttol
  rinttoll
  roundtol
  roundtoll

 each with float, double, and long double arguments. Writing these
 functions should be possible when following the implementation of
 the existing exp/log functions for other bases.
+
+ each with float, double, and long double arguments.
Beside this most of the complex math functions which are new in
 ISO C 9X. gcc already has support for numbers of complex type so the
 implementation should be possible today. I mention here the names
 and the way to write them (argument is z = x + iy):

  sin(z) = 1/(2i) (e^(iz)  e^(iz)) = sin(x) cosh(y) + i cos(x) sinh(y)
  cos(z) = 1/2 (e^(iz) + e^(iz)) = cos(x) cosh(y)  i sin(x) sinh(y)
  tan(z) = 1/i (e^(iz)  e^(iz))/(e^(iz) + e^(iz))
  cot(z) = i (e^(iz) + e^(iz))/(e^(iz)  e^(iz))
  asin(z) = i ln(iz + sqrt(1z^2))
  acos(z) = i ln(z + sqrt(z^21))
  atan(z) = 1/(2i) ln((1+iz)/(1iz))
  acot(z) = 1/(2i) ln((iz+1)/(iz1))
  tanh(z) = (e^z  e^z)/(e^z + e^z)
  coth(z) = (e^z + e^z)/(e^z  e^z)

 All functions should we written with all the parallelism in mind.
 And assembler versions are highly expreciated since, e.g., the ix87
 FPU provides an `fsincos' instructions which is certainly useful for
 the `sin' function. The implementations for the normal math functions
 shows other optimization techniques.
+ ISO C 9X should be improved. Writing some of them in assembler is
+ useful to exploit the parallelism which often is available.
[ 8] If you enjoy assembler programming (as I do drepper :) you might
@@ 107,12 +80,6 @@ contact
work.
[ 9] Write nftw() function. Perhaps it might be good to reimplement the
 ftw() function as well to share most of the code.

**** Almost done!


[10] Extend regex and/or rx to work with wide characters and complete
implementation of character class and collation class handling.
@@ 125,23 +92,12 @@ contact
hard and not all services must be supported at once.
[12] Rewrite utmp/wtmp functions to use database functions. This is much
 better than the normal flat file format.

**** There are plans for a new approach to this problem. Please contact
 bugglibc@prep.ai.mit.edu before starting to work.)


[13] Several more or less small functions have to be written:
+ tcgetid() and waitid() from XPG4.2
+ grantpt(), ptsname(), unlockpt() from XPG4.2
 + getdate() from XPG4.2
 *** Probably underway
 + fmtmsg() from SVID
 *** Probably underway
 More information are available on request.
+ More information is available on request.
[14] We need to write a library for onthefly transformation of streams