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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"
//
// Define BLAS-to-BLIS interfaces.
//
#undef GENTFUNC
#define GENTFUNC( ftype_x, chx, blasname, blisname ) \
\
f77_int PASTEF772(i,chx,blasname) \
( \
const f77_int* n, \
const ftype_x* x, const f77_int* incx \
) \
{ \
dim_t n0; \
ftype_x* x0; \
inc_t incx0; \
gint_t bli_index; \
f77_int f77_index; \
\
/* If the vector is empty, return an index of zero. This early check
is needed to emulate netlib BLAS. Without it, bli_?amaxv() will
return 0, which ends up getting incremented to 1 (below) before
being returned, which is not what we want. */ \
if ( *n < 1 || *incx <= 0 ) return 0; \
\
/* Initialize BLIS. */ \
bli_init_auto(); \
\
/* Convert/typecast negative values of n to zero. */ \
bli_convert_blas_dim1( *n, n0 ); \
\
/* If the input increments are negative, adjust the pointers so we can
use positive increments instead. */ \
bli_convert_blas_incv( n0, (ftype_x*)x, *incx, x0, incx0 ); \
\
/* Call BLIS interface. */ \
PASTEMAC2(chx,blisname,BLIS_TAPI_EX_SUF) \
( \
n0, \
x0, incx0, \
&bli_index, \
NULL, \
NULL \
); \
\
/* Convert zero-based BLIS (C) index to one-based BLAS (Fortran)
index. Also, if the BLAS integer size differs from the BLIS
integer size, that typecast occurs here. */ \
f77_index = bli_index + 1; \
\
/* Finalize BLIS. */ \
bli_finalize_auto(); \
\
return f77_index; \
}
#ifdef BLIS_ENABLE_BLAS
INSERT_GENTFUNC_BLAS( amax, amaxv )
#endif
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