[Gmp-commit] /var/hg/gmp: mpz/gcdext.c: Added the comment Niels asked one mon...

[mercurial at gmplib.org]

details:   /var/hg/gmp/rev/179c013730c3
changeset: 17314:179c013730c3
user:      Marco Bodrato <bodrato at mail.dm.unipi.it>
date:      Sun Feb 26 17:13:38 2017 +0100
description:
mpz/gcdext.c: Added the comment Niels asked one month ago...

diffstat:

 mpz/gcdext.c |  2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diffs (12 lines):

diff -r c3927196a330 -r 179c013730c3 mpz/gcdext.c
--- a/mpz/gcdext.c	Sun Feb 26 08:51:08 2017 +0100
+++ b/mpz/gcdext.c	Sun Feb 26 17:13:38 2017 +0100
@@ -66,6 +66,8 @@
 
       if (g != NULL)
 	{
+	  /* If g == a, then ALLOC(g) == ALLOC(a) >= asize, i.e.
+	     the next MPZ_NEWALLOC returns the old PTR(a) .*/
 	  gp = MPZ_NEWALLOC (g, asize);
 	  MPN_COPY (gp, PTR (a), asize);
 	  SIZ (g) = asize;