Making idealmoddivisor_aux public

[Robert Harron <robert.harron@gmail.com>]

Hi,

I'm writing code for computing ray class groups and Hecke characters in 
Sage mostly by wrapping the functions in the pari c library. One 
particular function I've had to write myself is the one that takes an 
ideal I and returns a 'small' ideal equivalent I modulo the given 
modulus (Algorithm 4.3.4 of Henri Cohen's Advanced topics book). I did 
however find that there is a function in the pari source code that does 
this: idealmoddivisor_aux in the file buch3.c. I was wondering if it 
would be possible to make a public version of this function in the pari 
library, perhaps just adding a modulus argument to idealred. It's pretty 
essential for making efficient computations in the ray class group and 
I'm sure the pari library version would be quicker than what I've written!

Thanks,

Rob