<none>

[Martin Blom <lcs at lysator dot liu dot se>]

Greetings, Sirs!

I'm using a RedHat 5.1/i386 setup, and I have problems compiling the
code below (with the optimizer turned on). I've tried both with the
"official" rpm's ( gcc-2.8.1-1, egcs-c++-1.0.2-8, egcs-1.0.2-8 ) from
RedHat (installed by default), and egcs-c++-1.0.3a-1 and
egcs-c++-1.0.3a-1 from  <URL:ftp://ftp.sunet.se/pub/os/Linux/distributions/redhat/contrib/manhattan/i386>.

If you need more information, let me know.

------------------------------------------------------------------------

[lcs@therese libimage]$ c++ -lm -O2 test.cpp
test.cpp: In method `void Image::Rotate(double)':
test.cpp:40: Internal compiler error.
test.cpp:40: Please submit a full bug report to `egcs-bugs@cygnus.com'.
[lcs@therese libimage]$ c++ --version
egcs-2.90.29 980515 (egcs-1.0.3 release)
[lcs@therese libimage]$ uname --all
Linux therese.mediate 2.0.35 #1 Thu Jul 23 14:01:04 EDT 1998 i586
unknown
[lcs@therese libimage]$

------------------------------------------------------------------------

#include <math.h>

static const double PI = 3.14159265358979323846;

struct Pixel
{
    unsigned char r;      // Red
    unsigned char g;      // Green
    unsigned char b;      // Blue
    unsigned char a;      // Alpha
};

class TError;

class Image
{
  public:
    void Rotate( double degrees )
      throw( TError );
    int Width();
    int Height();
    Pixel BackgroundColor();
};

void
Image::Rotate( double degrees )
  throw( TError )
{
  Pixel   bgcol    = BackgroundColor();
  double  cosphi   = cos( degrees * PI * 2 / 360 );
  double  sinphi   = sin( degrees * PI * 2 / 360 );
  int     wdst     = (int) floor( fabs( cosphi * Width() ) +
                                  fabs( sinphi * Height() ) );
  int     hdst     = (int) floor( fabs( cosphi * Height() ) +
                                  fabs( sinphi * Width() ) );
/*
  ...
*/
}

-- 
---- Martin 'Leviticus' Blom  ----------- lcs@lysator.liu.se ----
Eph 1:3-23                        http://www.lysator.liu.se/~lcs/