🚀 go-pugleaf

When compiling this code, gcc (2.2.2) produces the following warnings:

gcc -O -c test.c
test.c: In function `main':
test.c:26: warning: passing arg 1 of `foo' from incompatible pointer type

Is this a bug?

/* file test.c */

typedef float mat3[3][3];
void foo( const mat3 a, mat3 b ); /* some matrix manipulation */
void foo( const mat3 a, mat3 b)
{
  int i, j;
  
  for ( i = 0; i < 3; i++ )
    for ( j = 0; j < 3; j++ )
    {
      b[i][j] = -a[i][j];
    }
}

int main()
{
  mat3 a = {
    {1.0, 1.0, 1.0},
    {1.0, 1.0, 1.0},
    {1.0, 1.0, 1.0}
  };
  
  mat3 b;
  
  foo( a, b );
  return 1;
}
/* end of file test.c */

Thanks for any hints.
Behnam
--
Behnam Tabatabai                  | email: tab@piis05.joanneum.ac.at (internet)
                                  |        tab@piis10.joanneum.ac.at (internet)
Institute for Information Systems |        tabatabai@joanneum.ada.at (X.400)
Joanneum Research                 | tel:   (++43/316) 8020 - 241
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