p5pRT
commented
17 years ago From ECulver@scarborough.com
To: perlbug@perl.org Subject: NaN returned when raising integer value to negative power Reply-To: eculver@scarborough.com Message-Id: \5\.8\.8\_2892\_1165333655@​nycscr\-culvere1\.us\.enterprisenet\.org
This is a bug report for perl from eculver@scarborough.com\, generated with the help of perlbug 1.35 running under perl v5.8.8.
#!perl use warnings; use strict;
use bignum;
my $n = -1;
print "10 ** $n = " . 10 ** $n . "\n";
Flags: category=core severity=high
Site configuration information for perl v5.8.8:
Configured by SYSTEM at Tue Aug 29 12:39:43 2006.
Summary of my perl5 (revision 5 version 8 subversion 8) configuration: Platform: osname=MSWin32\, osvers=5.0\, archname=MSWin32-x86-multi-thread uname='' config_args='undef' hint=recommended\, useposix=true\, d_sigaction=undef usethreads=define use5005threads=undef useithreads=define usemultiplicity=define useperlio=define d_sfio=undef uselargefiles=define usesocks=undef use64bitint=undef use64bitall=undef uselongdouble=undef usemymalloc=n\, bincompat5005=undef Compiler: cc='cl'\, ccflags ='-nologo -GF -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DNO_HASH_SEED -DUSE_SITECUSTOMIZE -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX'\, optimize='-MD -Zi -DNDEBUG -O1'\, cppflags='-DWIN32' ccversion='12.00.8804'\, gccversion=''\, gccosandvers='' intsize=4\, longsize=4\, ptrsize=4\, doublesize=8\, byteorder=1234 d_longlong=undef\, longlongsize=8\, d_longdbl=define\, longdblsize=10 ivtype='long'\, ivsize=4\, nvtype='double'\, nvsize=8\, Off_t='__int64'\, lseeksize=8 alignbytes=8\, prototype=define Linker and Libraries: ld='link'\, ldflags ='-nologo -nodefaultlib -debug -opt:ref\,icf -libpath:"C:\Perl\lib\CORE" -machine:x86' libpth=\lib libs= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib uuid.lib ws2_32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib msvcrt.lib perllibs= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib uuid.lib ws2_32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib msvcrt.lib libc=msvcrt.lib\, so=dll\, useshrplib=yes\, libperl=perl58.lib gnulibc_version='' Dynamic Linking: dlsrc=dl_win32.xs\, dlext=dll\, d_dlsymun=undef\, ccdlflags=' ' cccdlflags=' '\, lddlflags='-dll -nologo -nodefaultlib -debug -opt:ref\,icf -libpath:"C:\Perl\lib\CORE" -machine:x86'
Locally applied patches: ACTIVEPERL_LOCAL_PATCHES_ENTRY Iin_load_module moved for compatibility with build 806 Avoid signal flag SA_RESTART for older versions of HP-UX PerlEx support in CGI::Carp Less verbose ExtUtils::Install and Pod::Find Patch for CAN-2005-0448 from Debian with modifications Rearrange @INC so that 'site' is searched before 'perl' Partly reverted 24733 to preserve binary compatibility 28671 Define PERL_NO_DEV_RANDOM on Windows 28376 Add error checks after execing PL_cshname or PL_sh_path 28305 Pod::Html should not convert \"foo\" into ``foo'' 27736 Make perl_fini() run with Sun WorkShop compiler 27619 Bug in Term::ReadKey being triggered by a bug in Term::ReadLine 27549 Move DynaLoader.o into libperl.so 27528 win32_pclose() error exit doesn't unlock mutex 27527 win32_async_check() can loop indefinitely 27515 ignore directories when searching @INC 27359 Fix -d:Foo=bar syntax 27210 Fix quote typo in c2ph 27203 Allow compiling swigged C++ code 27200 Make stat() on Windows handle trailing slashes correctly 27194 Get perl_fini() running on HP-UX again 27133 Initialise lastparen in the regexp structure 27034 Avoid \"Prototype mismatch\" warnings with autouse 26970 Make Passive mode the default for Net::FTP 26921 Avoid getprotobyname/number calls in IO::Socket::INET 26897\,26903 Make common IPPROTO_* constants always available 26670 Make '-s' on the shebang line parse -foo=bar switches 26536 INSTALLSCRIPT versus INSTALLDIRS 26379 Fix alarm() for Windows 2003 26087 Storable 0.1 compatibility 25861 IO::File performace issue 25084 long groups entry could cause memory exhaustion 24699 ICMP_UNREACHABLE handling in Net::Ping
@INC for perl v5.8.8: C:/Perl/site/lib C:/Perl/lib .
Environment for perl v5.8.8: HOME=C:/Documents and Settings/culvered01 LANG (unset) LANGUAGE (unset) LD_LIBRARY_PATH (unset) LOGDIR (unset)
PATH=C:\Perl\Bin\;C:\PROGRA~1\MKSTOO~1\Bin;C:\PROGRA~1\MKSTOO~1\Bin\x11;C:\PROGRA~1\MKSTOO~1\mksnt;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Intel\IDB\9.1\IA32\Script;C:\Program Files\Intel\Compiler\Fortran\9.1\IA32\Bin;C:\Program Files\Intel\Compiler\Fortran\9.1\EM64T\Bin;C:\Program Files\Microsoft Visual Studio\VC98\BIN;C:\Program Files\Microsoft Visual Studio\DF98\BIN;C:\Program Files\Microsoft Visual Studio\Common\MSDev98\Bin;C:\Program Files\Microsoft Visual Studio\Common\Msdev98\BIN;C:\Program Files\Microsoft Visual Studio\Common\Tools\WinNT;C:\Program Files\Microsoft Visual Studio\Common\Tools;C:\utility\Bin\;C:\emacs\Bin;C:\ruby\bin;C:\program files\GNU\Bin\Bin;C:\program files\OptTech;C:\qtime\Bin;C:\Bc4q\Bin;C:\Program Files\InstallShield\InstallShield 5.5 Professional Edition\Program;C:\Program Files\InstallShield\PackageForTheWeb 2;C:\Program Files\Microsoft SQL Server\80\Tools\Binn\;C:\Program Files\Microsoft SQL Server\90\Tools\Binn\;C:\Program Files\Microsoft Visual Studio\Common\Tools;C:\Program Files\Microsoft Visual Studio\Common\Tools\WinNT;C:\Program Files\Subversion\Bin;C:\Tcl\Bin;.;C:\Program Files\Microsoft Visual Studio\Common\Tools\WinNT;C:\Program Files\Microsoft Visual Studio\Common\MSDev98\Bin;C:\Program Files\Microsoft Visual Studio\Common\Tools;C:\Program Files\Microsoft Visual Studio\VC98\bin;.;C:\g95\bin;C:\gfortran\bin PERL_BADLANG (unset) PERL_RL=Perl o=0 SHELL=C:/PROGRA~1/MKSTOO~1/mksnt/ksh.exe
Migrated from rt.perl.org#41050 (status was 'resolved')
Searchable as RT41050$