Weird (!) gcc (g++) compile error

When I compile my program I get this:

internal error--insn does not satisfy its constraints:
(insn 105 48 49 (set (reg:SI 4 %esi)
(reg:SI 31)) 48 {movsi+2} (nil)
(nil))

I've looked in the source for gcc, and this comes from toplev.c... is it my program or is it a bug?

Oh, and btw, I'm using gcc 2 something (the one that comes with FreeBSD 4.5)

Thanks

Skarr

Wow, that is odd. I don't know whether it's a compiler bug or not. Is it some huge source file producing the error? Or is it something manageable that we can take a look at?

It's nothing big, and it really should work:

#include <curses.h>

class SMap {
public:
~SMap(void);
void blend(SMap &);
char map[COLS][LINES];
};

void SMap::blend(SMap &smap) {

for (int a = 0; a < COLS; a++)
for (int b = 0; b < LINES; b++)
if (smap.map[a][b] != map[a][b])
smap.map[a][b] = map[a][b];

}

Try it out, and if it does work, what version of gcc are you using?

Note: This is from my memory. I'll check it as soon as possible.

It seems curses already defines LINES and COLS as non-constant ints. The following code works when USE_CURSES is not defined, (thus using the constsants for COLS and LINES). If USE_CURSES is defined (hence including curses.h) and using the non-const int definition of COLS and LINES, it is illegal. I know nothing about curses, however. Are you trying to make map a 2d array of a size that varies at compile time? If so, you need to use dynamic memory.

Code:

// #define USE_CURSES

#ifdef USE_CURSES
#include <curses.h>
#else
const int COLS=5;
const int LINES=5;
#endif

class SMap {
 public:
 ~SMap(void);
 void blend(SMap &);
 char map[COLS][LINES];
 };
 
void SMap::blend(SMap &smap) {

for (int a = 0; a < COLS; a++)
 for (int b = 0; b < LINES; b++)
 if (smap.map[a][b] != map[a][b])
 smap.map[a][b] = map[a][b];
 
}
 
int main() {
	return 0;
}