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/*
BLIS
An object-based framework for developing high-performance BLAS-like
libraries.
Copyright (C) 2014, The University of Texas at Austin
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name(s) of the copyright holder(s) nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "blis.h"
// NOTE: This is one of the few functions in BLIS that is defined
// with heterogeneous type support. This is done so that we have
// an operation that can be used to typecast (copy-cast) a scalar
// of one datatype to a scalar of another datatype.
typedef void (*FUNCPTR_T)
(
conj_t conjchi,
void* chi,
void* psi
);
static FUNCPTR_T GENARRAY2_ALL(ftypes,copysc);
//
// Define object-based interfaces.
//
#undef GENFRONT
#define GENFRONT( opname ) \
\
void PASTEMAC0(opname) \
( \
obj_t* chi, \
obj_t* psi \
) \
{ \
bli_init_once(); \
\
conj_t conjchi = bli_obj_conj_status( chi ); \
\
num_t dt_psi = bli_obj_dt( psi ); \
void* buf_psi = bli_obj_buffer_at_off( psi ); \
\
num_t dt_chi; \
void* buf_chi; \
\
FUNCPTR_T f; \
\
if ( bli_error_checking_is_enabled() ) \
PASTEMAC(opname,_check)( chi, psi ); \
\
/* If chi is a scalar constant, use dt_psi to extract the address of the
corresponding constant value; otherwise, use the datatype encoded
within the chi object and extract the buffer at the chi offset. */ \
bli_obj_scalar_set_dt_buffer( chi, dt_psi, &dt_chi, &buf_chi ); \
\
/* Index into the type combination array to extract the correct
function pointer. */ \
f = ftypes[dt_chi][dt_psi]; \
\
/* Invoke the void pointer-based function. */ \
f( \
conjchi, \
buf_chi, \
buf_psi \
); \
}
GENFRONT( copysc )
//
// Define BLAS-like interfaces with typed operands.
//
#undef GENTFUNC2
#define GENTFUNC2( ctype_x, ctype_y, chx, chy, varname ) \
\
void PASTEMAC2(chx,chy,varname) \
( \
conj_t conjchi, \
void* chi, \
void* psi \
) \
{ \
bli_init_once(); \
\
ctype_x* chi_cast = chi; \
ctype_y* psi_cast = psi; \
\
if ( bli_is_conj( conjchi ) ) \
{ \
PASTEMAC2(chx,chy,copyjs)( *chi_cast, *psi_cast ); \
} \
else \
{ \
PASTEMAC2(chx,chy,copys)( *chi_cast, *psi_cast ); \
} \
}
INSERT_GENTFUNC2_BASIC0( copysc )
INSERT_GENTFUNC2_MIX_D0( copysc )
INSERT_GENTFUNC2_MIX_P0( copysc )
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