mirror of
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4fa4cb0734
Details: - Removed four trailing spaces after "BLIS" that occurs in most files' commented-out license headers. - Added UT copyright lines to some files. (These files previously had only AMD copyright lines but were contributed to by both UT and AMD.) - In some files' copyright lines, expanded 'The University of Texas' to 'The University of Texas at Austin'. - Fixed various typos/misspellings in some license headers.
96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/*
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BLIS
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An object-based framework for developing high-performance BLAS-like
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libraries.
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Copyright (C) 2014, The University of Texas at Austin
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name of The University of Texas at Austin nor the names
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of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef BLIS_SQRT2RIS_H
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#define BLIS_SQRT2RIS_H
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// sqrt2ris
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#define bli_ssqrt2ris( xr, xi, ar, ai ) \
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{ \
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(ar) = sqrtf( (xr) ); \
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}
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#define bli_dsqrt2ris( xr, xi, ar, ai ) \
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{ \
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(ar) = sqrt( (xr) ); \
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}
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#define bli_csqrt2ris( xr, xi, ar, ai ) \
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{ \
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float s = bli_fmaxabs( (xr), (xi) ); \
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float mag; \
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if ( s == 0.0F ) mag = 0.0F; \
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else \
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{ \
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mag = sqrtf( s ) * \
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sqrtf( ( (xr) / s ) * (xr) + \
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( (xi) / s ) * (xi) ); \
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} \
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\
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(ar) = sqrtf( ( mag + (xr) ) / 2.0F ); \
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(ai) = sqrtf( ( mag - (xi) ) / 2.0F ); \
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}
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#define bli_zsqrt2ris( xr, xi, ar, ai ) \
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{ \
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double s = bli_fmaxabs( (xr), (xi) ); \
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double mag; \
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if ( s == 0.0 ) mag = 0.0; \
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else \
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{ \
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mag = sqrt( s ) * \
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sqrt( ( (xr) / s ) * (xr) + \
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( (xi) / s ) * (xi) ); \
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} \
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\
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(ar) = sqrt( ( mag + (xr) ) / 2.0 ); \
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(ai) = sqrt( ( mag - (xi) ) / 2.0 ); \
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}
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#define bli_scsqrt2ris( xr, xi, ar, ai ) \
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{ \
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(ar) = sqrtf( (xr) ); \
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(ai) = 0.0F; \
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}
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#define bli_dzsqrt2ris( xr, xi, ar, ai ) \
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{ \
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(ar) = sqrt( (xr) ); \
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(ai) = 0.0; \
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}
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#endif
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