/* Subroutine */ int PASTEF77(z,rotg)(doublecomplex *ca, doublecomplex *cb, doublereal *c__, doublecomplex *s)
{
/* System generated locals */
doublereal d__1, d__2;
doublecomplex z__1, z__2, z__3, z__4;
/* Builtin functions */
double bla_z_abs(doublecomplex *);
void bla_z_div(doublecomplex *, doublecomplex *, doublecomplex *);
double sqrt(doublereal);
void bla_d_cnjg(doublecomplex *, doublecomplex *);
/* Local variables */
doublereal norm;
doublecomplex alpha;
doublereal scale;
if (bla_z_abs(ca) != 0.) {
goto L10;
}
*c__ = 0.;
bli_zsets( 1., 0., *s );
bli_zsets( bli_zreal(*cb), bli_zimag(*cb), *ca );
goto L20;
L10:
scale = bla_z_abs(ca) + bla_z_abs(cb);
bli_zsets( (scale), (0.), z__2 );
bla_z_div(&z__1, ca, &z__2);
/* Computing 2nd power */
d__1 = bla_z_abs(&z__1);
bli_zsets( (scale), (0.), z__4 );
bla_z_div(&z__3, cb, &z__4);
/* Computing 2nd power */
d__2 = bla_z_abs(&z__3);
norm = scale * sqrt(d__1 * d__1 + d__2 * d__2);
d__1 = bla_z_abs(ca);
bli_zsets( (bli_zreal(*ca) / d__1), (bli_zimag(*ca) / d__1), z__1 );
bli_zsets( (bli_zreal(z__1)), (bli_zimag(z__1)), alpha );
*c__ = bla_z_abs(ca) / norm;
bla_d_cnjg(&z__3, cb);
bli_zsets( (bli_zreal(alpha) * bli_zreal(z__3) - bli_zimag(alpha) * bli_zimag(z__3)), (bli_zreal(alpha) * bli_zimag(z__3) + bli_zimag(alpha) * bli_zreal(z__3)), z__2 );
bli_zsets( (bli_zreal(z__2) / norm), (bli_zimag(z__2) / norm), z__1 );
bli_zsets( bli_zreal(z__1), bli_zimag(z__1), *s );
bli_zsets( (norm * bli_zreal(alpha)), (norm * bli_zimag(alpha)), z__1 );
bli_zsets( bli_zreal(z__1), bli_zimag(z__1), *ca );
L20:
return 0;
} /* zrotg_ */
void bli_fprintm( FILE* file, char* s1, obj_t* x, char* format, char* s2 )
{
num_t dt_x = bli_obj_datatype( *x );
dim_t m = bli_obj_length( *x );
dim_t n = bli_obj_width( *x );
inc_t rs_x = bli_obj_row_stride( *x );
inc_t cs_x = bli_obj_col_stride( *x );
void* buf_x = bli_obj_buffer_at_off( *x );
FUNCPTR_T f;
if ( bli_error_checking_is_enabled() )
bli_fprintm_check( file, s1, x, format, s2 );
// Handle constants up front.
if ( dt_x == BLIS_CONSTANT )
{
float* sp = bli_obj_buffer_for_const( BLIS_FLOAT, *x );
double* dp = bli_obj_buffer_for_const( BLIS_DOUBLE, *x );
scomplex* cp = bli_obj_buffer_for_const( BLIS_SCOMPLEX, *x );
dcomplex* zp = bli_obj_buffer_for_const( BLIS_DCOMPLEX, *x );
gint_t* ip = bli_obj_buffer_for_const( BLIS_INT, *x );
fprintf( file, "%s\n", s1 );
fprintf( file, " float: %9.2e\n", bli_sreal( *sp ) );
fprintf( file, " double: %9.2e\n", bli_dreal( *dp ) );
fprintf( file, " scomplex: %9.2e + %9.2e\n", bli_creal( *cp ), bli_cimag( *cp ) );
fprintf( file, " dcomplex: %9.2e + %9.2e\n", bli_zreal( *zp ), bli_zimag( *zp ) );
fprintf( file, " int: %ld\n", *ip );
fprintf( file, "\n" );
return;
}
// Index into the type combination array to extract the correct
// function pointer.
f = ftypes[dt_x];
// Invoke the function.
f( file,
s1,
m,
n,
buf_x, rs_x, cs_x,
format,
s2 );
}
bool_t bli_obj_scalar_has_nonzero_imag( obj_t* a )
{
bool_t r_val = FALSE;
num_t dt = bli_obj_datatype( *a );
void* scalar_a = bli_obj_internal_scalar_buffer( *a );
if ( bli_is_real( dt ) )
{
r_val = FALSE;
}
else if ( bli_is_scomplex( dt ) )
{
r_val = ( bli_cimag( *(( scomplex* )scalar_a) ) != 0.0F );
}
else if ( bli_is_dcomplex( dt ) )
{
r_val = ( bli_zimag( *(( dcomplex* )scalar_a) ) != 0.0 );
}
return r_val;
}
double bla_z_abs(const bla_dcomplex *z)
{
return( bla_f__cabs( bli_zreal( *z ),
bli_zimag( *z ) ) );
}
double bla_d_imag(doublecomplex *z)
{
return bli_zimag( *z );
}
/* Subroutine */ int PASTEF77(zd,rot)(const bla_integer *n, bla_dcomplex *zx, const bla_integer *incx, bla_dcomplex *zy, const bla_integer *incy, const bla_double *c__, const bla_double *s)
{
/* System generated locals */
bla_integer i__1, i__2, i__3, i__4;
bla_dcomplex z__1, z__2, z__3;
/* Local variables */
bla_integer i__;
bla_dcomplex ztemp;
bla_integer ix, iy;
/* applies a plane rotation, where the cos and sin (c and s) are */
/* double precision and the vectors zx and zy are double complex. */
/* jack dongarra, linpack, 3/11/78. */
/* Parameter adjustments */
--zy;
--zx;
/* Function Body */
if (*n <= 0) {
return 0;
}
if (*incx == 1 && *incy == 1) {
goto L20;
}
/* code for unequal increments or equal increments not equal */
/* to 1 */
ix = 1;
iy = 1;
if (*incx < 0) {
ix = (-(*n) + 1) * *incx + 1;
}
if (*incy < 0) {
iy = (-(*n) + 1) * *incy + 1;
}
i__1 = *n;
for (i__ = 1; i__ <= i__1; ++i__) {
i__2 = ix;
bli_zsets( (*c__ * bli_zreal(zx[i__2])), (*c__ * bli_zimag(zx[i__2])), z__2 );
i__3 = iy;
bli_zsets( (*s * bli_zreal(zy[i__3])), (*s * bli_zimag(zy[i__3])), z__3 );
bli_zsets( (bli_zreal(z__2) + bli_zreal(z__3)), (bli_zimag(z__2) + bli_zimag(z__3)), z__1 );
bli_zsets( (bli_zreal(z__1)), (bli_zimag(z__1)), ztemp );
i__2 = iy;
i__3 = iy;
bli_zsets( (*c__ * bli_zreal(zy[i__3])), (*c__ * bli_zimag(zy[i__3])), z__2 );
i__4 = ix;
bli_zsets( (*s * bli_zreal(zx[i__4])), (*s * bli_zimag(zx[i__4])), z__3 );
bli_zsets( (bli_zreal(z__2) - bli_zreal(z__3)), (bli_zimag(z__2) - bli_zimag(z__3)), z__1 );
bli_zsets( (bli_zreal(z__1)), (bli_zimag(z__1)), zy[i__2] );
i__2 = ix;
bli_zsets( (bli_zreal(ztemp)), (bli_zimag(ztemp)), zx[i__2] );
ix += *incx;
iy += *incy;
/* L10: */
}
return 0;
/* code for both increments equal to 1 */
L20:
i__1 = *n;
for (i__ = 1; i__ <= i__1; ++i__) {
i__2 = i__;
bli_zsets( (*c__ * bli_zreal(zx[i__2])), (*c__ * bli_zimag(zx[i__2])), z__2 );
i__3 = i__;
bli_zsets( (*s * bli_zreal(zy[i__3])), (*s * bli_zimag(zy[i__3])), z__3 );
bli_zsets( (bli_zreal(z__2) + bli_zreal(z__3)), (bli_zimag(z__2) + bli_zimag(z__3)), z__1 );
bli_zsets( (bli_zreal(z__1)), (bli_zimag(z__1)), ztemp );
i__2 = i__;
i__3 = i__;
bli_zsets( (*c__ * bli_zreal(zy[i__3])), (*c__ * bli_zimag(zy[i__3])), z__2 );
i__4 = i__;
bli_zsets( (*s * bli_zreal(zx[i__4])), (*s * bli_zimag(zx[i__4])), z__3 );
bli_zsets( (bli_zreal(z__2) - bli_zreal(z__3)), (bli_zimag(z__2) - bli_zimag(z__3)), z__1 );
bli_zsets( (bli_zreal(z__1)), (bli_zimag(z__1)), zy[i__2] );
i__2 = i__;
bli_zsets( (bli_zreal(ztemp)), (bli_zimag(ztemp)), zx[i__2] );
/* L30: */
}
return 0;
} /* zdrot_ */
double bla_d_imag(const bla_dcomplex *z)
{
return bli_zimag( *z );
}