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Diffstat (limited to 'LAPACKE/utils/lapacke_zge_trans.c')
-rw-r--r-- | LAPACKE/utils/lapacke_zge_trans.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/LAPACKE/utils/lapacke_zge_trans.c b/LAPACKE/utils/lapacke_zge_trans.c new file mode 100644 index 00000000..79090ecb --- /dev/null +++ b/LAPACKE/utils/lapacke_zge_trans.c @@ -0,0 +1,65 @@ +/***************************************************************************** + Copyright (c) 2014, Intel Corp. + All rights reserved. + + 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 of Intel Corporation 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 OWNER 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. +****************************************************************************** +* Contents: Native C interface to LAPACK utility function +* Author: Intel Corporation +* Created in February, 2010 +*****************************************************************************/ + +#include "lapacke_utils.h" + +/* Converts input general matrix from row-major(C) to column-major(Fortran) + * layout or vice versa. + */ + +void LAPACKE_zge_trans( int matrix_layout, lapack_int m, lapack_int n, + const lapack_complex_double* in, lapack_int ldin, + lapack_complex_double* out, lapack_int ldout ) +{ + lapack_int i, j, x, y; + + if( in == NULL || out == NULL ) return; + + if( matrix_layout == LAPACK_COL_MAJOR ) { + x = n; + y = m; + } else if ( matrix_layout == LAPACK_ROW_MAJOR ) { + x = m; + y = n; + } else { + /* Unknown input layout */ + return; + } + + /* In case of incorrect m, n, ldin or ldout the function does nothing */ + for( i = 0; i < MIN( y, ldin ); i++ ) { + for( j = 0; j < MIN( x, ldout ); j++ ) { + out[ (size_t)i*ldout + j ] = in[ (size_t)j*ldin + i ]; + } + } +} |