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  • std::endl is broken in gcc v4.7.3?

    From James Moe@21:1/5 to All on Mon May 9 14:46:07 2016
    Hello,
    os/2 4.5.2
    gcc v4.7.3

    I rebuilt PMMal using gcc 4.7.3 rather than with 3.3.5 because of some additional features and that 3.3.5 is broken in some ways.
    The program compiles (with lots of warnings about unused vars, but can
    be ignored) and builds okay. It does not run, it crashes almost right
    away. A build with 3.3.5 runs without a problem.
    The reason for crash is "std::endl". When that is used as a newline,
    splat!

    This works in 4.7.3:
    cerr << log_timestamp(datetime, TXT_SIZE) << "-C-" << txt << '\n';
    This does not:
    cerr << log_timestamp(datetime, TXT_SIZE) << "-C-" << txt << std::endl;

    From the exceptq trap report:
    Module: LIBC066
    Filename: C:\USR\DLL\LIBC066.DLL 10/26/2014 20:16:29 1,361,666
    Address: 005B:1F3117F2 (0001:000D17F2)
    Cause: Attempted to write to FFFFFFFF
    (not a valid address)


    The following test program works as expected.

    #include <cstdlib>
    #include <cstdio>
    #include <iostream>
    #include <sstream>
    #include <iomanip>
    #include <string>

    using namespace std;

    int main (int argc, char ** argv)
    {
    cerr << "This is a test of std::endl" << std::endl;

    return 0;
    }

    Any suggestions for the usual suspects?

    --
    James Moe
    jmm-list at sohnen-moe dot com

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  • From James Moe@21:1/5 to James Moe on Mon May 9 15:43:56 2016
    On 05/09/2016 02:46 PM, James Moe wrote:
    I rebuilt PMMal using gcc 4.7.3 [...]

    Bzzt! Operator error! I had not set up the include and library paths properly.
    Ignore this thread.

    --
    James Moe
    jmm-list at sohnen-moe dot com

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  • From Steven Levine@21:1/5 to jimoeDESPAM@sohnen-moe.com on Tue May 10 19:29:33 2016
    On Mon, 9 May 2016 22:43:56 UTC, James Moe
    <jimoeDESPAM@sohnen-moe.com> wrote:

    Hi James,

    Bzzt! Operator error! I had not set up the include and library paths properly.
    Ignore this thread.

    FWIW, if you are going to go to the trouble of switching to a new
    version of the compiler, you should go to at least 4.9.2. 4.7.3 is
    almost 3 years old. 4.9.2 is getting a bit long in the tooth too, but
    it is still widely used.

    Paul just released a 6.1.0 build, but it's not well tested yet because
    it's only a couple of weeks old.

    Steven


    --
    ---------------------------------------------------------------------
    Steven Levine <steve53@earthlink.bogus.net>
    DIY/Warp/BlueLion etc. www.scoug.com www.arcanoae.com www.warpcave.com ---------------------------------------------------------------------

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  • From Paul Smedley@21:1/5 to Steven Levine on Sat May 21 06:48:16 2016
    Hi guys,

    On 11/05/16 09:59, Steven Levine wrote:
    On Mon, 9 May 2016 22:43:56 UTC, James Moe
    <jimoeDESPAM@sohnen-moe.com> wrote:

    Hi James,

    Bzzt! Operator error! I had not set up the include and library paths
    properly.
    Ignore this thread.

    FWIW, if you are going to go to the trouble of switching to a new
    version of the compiler, you should go to at least 4.9.2. 4.7.3 is
    almost 3 years old. 4.9.2 is getting a bit long in the tooth too, but
    it is still widely used.

    Paul just released a 6.1.0 build, but it's not well tested yet because
    it's only a couple of weeks old.

    4.9.2 is also in RPM and is very well tested. 6.1.0 seems to work with
    all I've thrown at, but I've had no other real feedback. Maybe I should
    just add it to my site...

    Cheers,

    Paul

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  • From Dave Yeo@21:1/5 to Paul Smedley on Fri May 20 23:45:15 2016
    Paul Smedley wrote:
    Hi guys,

    On 11/05/16 09:59, Steven Levine wrote:
    On Mon, 9 May 2016 22:43:56 UTC, James Moe
    <jimoeDESPAM@sohnen-moe.com> wrote:

    Hi James,

    Bzzt! Operator error! I had not set up the include and library paths
    properly.
    Ignore this thread.

    FWIW, if you are going to go to the trouble of switching to a new
    version of the compiler, you should go to at least 4.9.2. 4.7.3 is
    almost 3 years old. 4.9.2 is getting a bit long in the tooth too, but
    it is still widely used.

    Paul just released a 6.1.0 build, but it's not well tested yet because
    it's only a couple of weeks old.

    4.9.2 is also in RPM and is very well tested. 6.1.0 seems to work with
    all I've thrown at, but I've had no other real feedback. Maybe I should
    just add it to my site...


    Wget keeps failing when I've tried to download it. I'll try again but
    expect that it'll have the same problems as all GCC versions since
    4.4.6. Compare http://fate.ffmpeg.org/history.cgi?slot=x86.os2.446 vs http://fate.ffmpeg.org/history.cgi?slot=x86.os2.492. Some of the
    failures came with the update from libc065 to libc066 (MP2 muxing and
    tests that depend on it). Libc065 only works correctly on Warp v4
    without patching for the FPU control word bug.
    I'd also like to try building Mozilla as a good test of C++ support but
    have become more dependent on RPM/YUM as only that Python correctly does
    the _virtualenv thing.
    Dave

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