Subject: Re: GCC 3.3.1 problem with printf %Lg %Lg and -m128bit-long-double compile option
From: "Gerrit P. Haase" <[email-masked]>
To: [email-masked]
Cc: [email-masked]
Date: Thu, 27 May 2004 20:58:59 +0200

Hallo mathias,

> GCC 3.3.1 has a problem when printing multiple long double variables using
> printf and the  -m128bit-long-double compile option on a Pentium-based
> machine.

Seems to be a bug in gcc, for bug reporting instructions, please see:
http://gcc.gnu.org/bugs.html.

> compile the code below with 

>  gcc  -m128bit-long-double  test.c

> and with

> gcc  test.c

> The later will print stuff correctly in both printf statements, whereas
> the former will print fine only as long as the printf statement contains a
> single  long double variable only, but will issue garbage when printing
> more than one long double variable in the same printf statement.

> #include <stdlib.h>
> #include <stdio.h>
> #include <string.h>
> #include <math.h>

> int
> main( int argc, char *argv[] )
> {
>   long double first_long_double_variable = 5.6;
>   long double second_long_double_variable = 9.3;

>   printf ("here comes a long double %Lg\n", first_long_double_variable);
>   printf ("here come TWO long doubles %Lg %Lg\n", 
> first_long_double_variable, second_long_double_variable);

> }

> Installation Info as copied from cygcheck.out:

Please don't send cygcheck output inline an email, send it as
attachment.

Gerrit
-- 
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