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Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master
From: |
Andrew J. Schorr |
Subject: |
Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches |
Date: |
Tue, 6 Feb 2018 15:58:51 -0500 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Feb 06, 2018 at 03:40:02PM -0500, Andrew J. Schorr wrote:
> But to be safe: was the intdiv extension also built with MPFR 3.1.6?
> I don't see this problem on Fedora 27 with MPFR 3.1.5. I'm building
> 3.1.6 now...
I don't see any difference with 3.1.6. I guess one obvious thing to try
is rebuilding with "./configure --enable-builtin-intdiv0", and then
patching test/mpfrsqrt.awk to replace "intdiv" with "intdiv0" and confirm
that it works correctly. As I understand it, when you run:
AWKLIBPATH=extension/.libs ./gawk -M -f test/mpfrsqrt.awk
you are seeing:
11111111111111111111111111111111111111111111111111111111111
11111111111111109867334288901275613641560219569226843684864
--- test/mpfrsqrt.awk 2018-02-06 15:26:01.321390000 -0500
+++ test/mpfrsqrt0.awk 2018-02-06 15:55:58.100818000 -0500
@@ -10,7 +10,6 @@
# Running this program (sqrt-bug.awk):
# --------------------------------------------------------------------
address@hidden "intdiv"
BEGIN {
a=11111111111111111111111111111111111111111111111111111111111
print sqrt(a^2)
@@ -29,9 +28,9 @@ function sq_root(x, temp,r,z)
z=0
while (abs(z-temp)>1)
{ z=temp
- intdiv(x,temp,r)
+ intdiv0(x,temp,r)
temp=r["quotient"] + temp
- intdiv(temp,2,r)
+ intdiv0(temp,2,r)
temp=r["quotient"]
}
return temp
So what do you see when you run:
./gawk -M -f test/mpfrsqrt0.awk
And maybe also try:
--- test/mpfrsqrt.awk 2018-02-06 15:26:01.321390000 -0500
+++ test/mpfrsqrt1.awk 2018-02-06 15:57:49.248040000 -0500
@@ -10,17 +10,13 @@
# Running this program (sqrt-bug.awk):
# --------------------------------------------------------------------
address@hidden "intdiv"
BEGIN {
a=11111111111111111111111111111111111111111111111111111111111
print sqrt(a^2)
#print sq_root(a^2)
# ADR: Added for gawk-4.1-stable which doesn't have built-in intdiv() function
-if (PROCINFO["version"] < "4.1.60")
- print sq_root2(a^2)
-else
- print sq_root(a^2)
+print sq_root2(a^2)
}
./gawk -M -f test/mpfrsqrt1.awk
Thanks,
Andy
- [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Hermann Peifer, 2018/02/06
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Hermann Peifer, 2018/02/06
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Andrew J. Schorr, 2018/02/06
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches,
Andrew J. Schorr <=
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Hermann Peifer, 2018/02/06
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Andrew J. Schorr, 2018/02/07
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Hermann Peifer, 2018/02/07
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Andrew J. Schorr, 2018/02/07
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Andrew J. Schorr, 2018/02/07
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Hermann Peifer, 2018/02/07
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Andrew J. Schorr, 2018/02/07
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Hermann Peifer, 2018/02/08
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Hermann Peifer, 2018/02/07
- Re: [bug-gawk] macOS: mpfrsqrt check fails on gawk-4.2-stable and master branches, Andrew J. Schorr, 2018/02/07