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h2ph is unable to parse do { ... } while (0) constructs in macros #7843

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p5pRT opened this issue Mar 19, 2005 · 5 comments
Closed

h2ph is unable to parse do { ... } while (0) constructs in macros #7843

p5pRT opened this issue Mar 19, 2005 · 5 comments
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distro-All type-core type-utilities

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@p5pRT
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p5pRT commented Mar 19, 2005

Migrated from rt.perl.org#34496 (status was 'resolved')

Searchable as RT34496$
@p5pRT
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p5pRT commented Mar 19, 2005

From at@altlinux.ru

Created by at@solemn.turbinal.org

Again, I know h2ph is a rough tool that doesn't handle all C constructs.
This is the last bug report for today. :)

$ cat while0.h
#define NOOP \
  do { \
  int x = 1 + 1; \
  } while (0)
$ h2ph -d . while0.h
while0.h -> while0.ph
$ perl -c while0.ph
syntax error at while0.ph line 6, near "&do { "
syntax error at while0.ph line 7, near "}"
while0.ph had compilation errors.
$ cat while0.ph
require '_h2ph_pre.ph';

no warnings 'redefine';

unless(defined(&NOOP)) {
  sub NOOP () { &do { 'int' &x = 1+ 1; } &while (0);}
}
1;
$

Perl Info 

Flags:
    category=utilities
    severity=low

Site configuration information for perl v5.8.6:

Configured by ALT Linux Team at Fri Mar 11 15:59:16 MSK 2005.

Summary of my perl5 (revision 5 version 8 subversion 6) configuration:
  Platform:
    osname=linux, osvers=2.4.20-alt7-up, archname=i386-linux-thread-multi
    uname='linux solemn.turbinal.org 2.4.20-alt7-up #1 fri mar 14 14:57:05 msk 2003 i686 unknown unknown gnulinux '
    config_args='-de -rs -Darchname=i386-linux -Dd_dosuid -Ud_csh -Dlibswanted=dl m c crypt db ndbm gdbm -Duseshrplib -Dlibperl=libperl.so.5.8 -Dcc=gcc -Doptimize=-pipe -Wall -Os -march=i686 -D_GNU_SOURCE -momit-leaf-frame-pointer -Dcccdlflags=-fPIC -DPIC -Dccdlflags=-rdynamic -Wl,-O1 -Dlddlflags=-shared -Wl,-O1 -Dldflags=-Wl,-O1 -Dprefix=/usr -Dprivlib=/usr/lib/perl5 -Darchlib=/usr/lib/perl5/i386-linux -Dvendorprefix=/usr -Dvendorlib=/usr/lib/perl5/vendor_perl -Dvendorarch=/usr/lib/perl5/vendor_perl/i386-linux -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dvendorman1dir=/usr/share/man/man1 -Dvendorman3dir=/usr/share/man/man3 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/lib/perl5/site_perl/5.8.6 -Dsitearch=/usr/local/lib/perl5/site_perl/5.8.6/i386-linux -Dsiteman1dir=/usr/local/man/man1 -Dsite_man3dir=/usr/local/man/man3 -Dcf_by=ALT Linux Team -Dcf_email=qa@altlinux.org -Dmyhostname=localhost -Dperladmin=root@localhost -Dmyuname=Linux 2.4.20-alt7-up i686 -Dnewmyuname=Linux 2.4.20-alt7-up i686 -Dinc_version_list=5.8.5/i386-linux 5.8.4/i386-linux 5.8.3/i386-linux 5.8.2/i386-linux 5.8.1/i386-linux 5.8.0/i386-linux 5.8.5 5.8.4 5.8.3 5.8.2 5.8.1 5.8.0 5.6.1 5.6.0 -Dpager=/usr/bin/less -isR -Di_shadow -Di_syslog -Dusethreads -Duseithreads -Duselargefiles -Di_db -Di_gdbm -Di_ndbm -Di_sdbm -Ui_odbm'
    hint=recommended, useposix=true, d_sigaction=define
    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='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
    optimize='-pipe -Wall -Os -march=i686 -D_GNU_SOURCE -momit-leaf-frame-pointer',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -fno-strict-aliasing -pipe -I/usr/local/include -I/usr/include/gdbm'
    ccversion='', gccversion='3.3.3 20040412 (ALT Linux, build 3.3.3-alt5)', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=4, prototype=define
  Linker and Libraries:
    ld='gcc', ldflags ='-Wl,-O1 -L/usr/local/lib64 -L/usr/local/lib'
    libpth=/usr/local/lib64 /usr/local/lib /lib64 /usr/lib64 /lib /usr/lib
    libs=-ldl -lm -lpthread -lc -lcrypt -ldb -lgdbm
    perllibs=-ldl -lm -lpthread -lc -lcrypt
    libc=/lib/libc-2.3.3.so, so=so, useshrplib=true, libperl=libperl.so.5.8
    gnulibc_version='2.3.3'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic -Wl,-O1'
    cccdlflags='-fPIC -DPIC', lddlflags='-shared -Wl,-O1 -L/usr/local/lib64 -L/usr/local/lib'

Locally applied patches:
    


@INC for perl v5.8.6:
    /etc/perl5
    /usr/lib/perl5/i386-linux
    /usr/lib/perl5
    /usr/local/lib/perl5/site_perl/5.8.6/i386-linux
    /usr/local/lib/perl5/site_perl/5.8.6
    /usr/local/lib/perl5/site_perl/5.8.4/i386-linux
    /usr/local/lib/perl5/site_perl/5.8.2/i386-linux
    /usr/local/lib/perl5/site_perl/5.8.1/i386-linux
    /usr/local/lib/perl5/site_perl/5.8.4
    /usr/local/lib/perl5/site_perl/5.8.2
    /usr/local/lib/perl5/site_perl/5.8.1
    /usr/local/lib/perl5/site_perl/5.6.1
    /usr/local/lib/perl5/site_perl
    /usr/lib/perl5/vendor_perl/i386-linux
    /usr/lib/perl5/vendor_perl
    /usr/lib/perl5/vendor_perl
    .


Environment for perl v5.8.6:
    HOME=/home/at
    LANG=C
    LANGUAGE (unset)
    LC_COLLATE=ru_RU.CP1251
    LC_CTYPE=ru_RU.CP1251
    LC_MESSAGES=C
    LC_MONETARY=ru_RU.CP1251
    LC_NUMERIC=ru_RU.CP1251
    LC_TIME=C
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/home/at/bin:/bin:/usr/bin:/usr/X11R6/bin:/usr/local/bin:/usr/games:/sbin:/usr/sbin:/usr/local/sbin:/usr/lib/qt3/bin
    PERL_BADLANG (unset)
    SHELL=/bin/zsh

@p5pRT
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p5pRT commented Dec 29, 2011

From @jkeenan

On Sat Mar 19 09​:59​:22 2005, at@​altlinux.ru wrote​:

This is a bug report for perl from at@​solemn.turbinal.org,
generated with the help of perlbug 1.35 running under perl v5.8.6.

Again, I know h2ph is a rough tool that doesn't handle all C
constructs.
This is the last bug report for today. :)

$ cat while0.h
#define NOOP \
do { \
int x = 1 + 1; \
} while (0)
$ h2ph -d . while0.h
while0.h -> while0.ph
$ perl -c while0.ph
syntax error at while0.ph line 6, near "&do { "
syntax error at while0.ph line 7, near "}"
while0.ph had compilation errors.
$ cat while0.ph
require '_h2ph_pre.ph';

no warnings 'redefine';

unless(defined(&NOOP)) {
sub NOOP () { &do { 'int' &x = 1+ 1; } &while (0);}
}
1;
$

Trying this today with Perl 5.14.2 on Darwin/PPC, I get better results​:

#####
$ h2ph -d . while0.h
while0.h -> while0.ph

$ cat while0.ph
require '_h2ph_pre.ph';

no warnings qw(redefine misc);

unless(defined(&NOOP)) {
  sub NOOP () { 1;}
}
1;

$ perl -c while0.ph
while0.ph syntax OK
#####

If so, can we close this ticket?

Thank you very much.
Jim Keenan

@p5pRT
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p5pRT commented Dec 29, 2011

The RT System itself - Status changed from 'new' to 'open'

@p5pRT
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p5pRT commented Jul 7, 2016

From @dcollinsn

Per Jim Keenan's results and my own, this seems to be resolved.

@p5pRT p5pRT closed this as completed Jul 7, 2016
@p5pRT
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p5pRT commented Jul 7, 2016

@dcollinsn - Status changed from 'open' to 'resolved'

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