Hi! ----
This is basically a spin-off of http://bugs.opensolaris.org/view_bug.do?bug_id=6773712 ("1-digit hex fp base conversion of long double rounds incorrectly"). The bug description for Solaris libc says this: > The first line of output from this program is correct. The second line > is not. > > leviathan% cat a.c > #include <stdio.h> > > int main() > { > printf("%.0a\n", 1.5); > printf("%.0La\n", 1.5L); > return 0; > } > leviathan% cc -o a a.c > leviathan% a > 0x1p+1 > 0x1p+0 > leviathan% If I compile the testcase with libast on Solaris 11/B84 SPARC (which matches ast-open.2008-11-04) I get this: -- snip -- $ cc -xc99=%all -I/usr/include/ast -last a.c -o a && ./a 0x1p+00 0x1p+00 -- snip -- ... which seems to be incorrect per the bugs comment above and should be: -- snip -- 0x1p+1 0x1p+1 -- snip -- ksh93 has the same problem: $ ksh93 -c 'float r=1.5 ; printf "%.0a\n" r' 0x1p+00 I'm now trying to dig out more testcases for this issue... ---- Bye, Roland -- __ . . __ (o.\ \/ /.o) roland.mainz at nrubsig.org \__\/\/__/ MPEG specialist, C&&JAVA&&Sun&&Unix programmer /O /==\ O\ TEL +49 641 3992797 (;O/ \/ \O;)
