Web lists-archives.com

Re: [Mingw-msys] Compiling bash




* Charles Wilson
| msys:
| $ uname -s -r
| MINGW32_NT-6.0 1.0.13(0.47/3/2)
| $ gawk --version
| GNU Awk 3.1.7
| $ echo "-1 2" | gawk '{printf "%f %f\n", $1, $2}'
| -1.000000 2.000000

This is what I'd expect.

| I really wouldn't expect gawk's %f printf to act any differently
| that C's:
| 
| #include <stdio.h>
| int main(int argc, char *argv[])
| {
| 	double d1 = -1;
| 	double d2 = 2;
| 	printf ("%f %f\n", d1, d2);
| }
| 
| 
| $ gcc -o bob bob.c
| $ ./bob
| -1.000000 2.000000

In fact, it does not:

    $ gawk '{printf "%g %g\n", -1, 2}'

    1 -2

    -1 2

    1 -2

    -1 2

Note the alternating sign...

    $ cat x.c
    #include <stdio.h>
    int main(int argc, char *argv[])
    {
	    double d1 = -1;
	    double d2 = 2;
	    printf ("%f %f\n", d1, d2);
	    printf ("%f %f\n", d1, d2);
	    printf ("%f %f\n", d1, d2);
	    printf ("%f %f\n", d1, d2);
    }

    $ gcc -o x x.c

    $ ./x
    1.000000 -2.000000
    -1.000000 2.000000
    1.000000 -2.000000
    -1.000000 2.000000

I.e. the C binary also gets it wrong.  Seems like this has nothing to
do with gawk.

If I run the very same binary in the 1.0.12 environment, it is ok:
    $ ./x
    -1.000000 2.000000
    -1.000000 2.000000

msysinfo for 1.0.13:
    $ msysinfo
    msysinfo-1.3: Send this to the MSYS support list:

    MSYS 1.0.13(0.47/3/2) 2010-01-15 19:54 i686 unknown; targ=MINGW32
    GNU bash, version 3.1.17(1)-release (i686-pc-msys); ENV=.profile
    GNU Make 3.81This program built for i686-pc-msys; MAKE_MODE=unix
    gcc (GCC) 3.4.4 (msys special); targ=MINGW32
    GNU ld (GNU Binutils) 2.19.51.20090704
     2010-01-15 19:56:40.000000000 +0000 /bin/msys-1.0.dll
     2008-03-25 23:51:00.000000000 +0000 /bin/make.exe
     2010-01-16 20:38:39.000000000 +0000 /bin/gcc.exe
    2 2010-01-16 21:17:47.000000000 +0000 /bin/ld.exe
    HOME=/c/home/ralf
    Sysname=MINGW32_NT-5.1  OSTYPE=msys  TERM=cygwin
    PATH=/bin
    $ ls -tx /c/home/ralf/tmp
    x.exe*  x.c

Will try to recompile the MSYS runtime...

R'

------------------------------------------------------------------------------
The Planet: dedicated and managed hosting, cloud storage, colocation
Stay online with enterprise data centers and the best network in the business
Choose flexible plans and management services without long-term contracts
Personal 24x7 support from experience hosting pros just a phone call away.
http://p.sf.net/sfu/theplanet-com
_______________________________________________
Mingw-msys mailing list
Mingw-msys@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/mingw-msys