mylong *matrix_multiply(gf_t *gf, mylong *m1, mylong *m2, int r1, int c1, int r2, int c2, int w, float *toto)
{
mylong *product;
mylong *matrix_multiply(gf_t *gf, mylong *m1, mylong *m2, int r1, int c1, int r2, int c2, int w, float *toto)
{
mylong *product;