93 lines
2.2 KiB
C++
93 lines
2.2 KiB
C++
/* fortran/dcabs1.f -- translated by f2c (version 20200916).
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You must link the resulting object file with libf2c:
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on Microsoft Windows system, link with libf2c.lib;
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on Linux or Unix systems, link with .../path/to/libf2c.a -lm
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or, if you install libf2c.a in a standard place, with -lf2c -lm
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-- in that order, at the end of the command line, as in
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cc *.o -lf2c -lm
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Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
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http://www.netlib.org/f2c/libf2c.zip
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "lmp_f2c.h"
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/* > \brief \b DCABS1 */
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/* =========== DOCUMENTATION =========== */
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/* Online html documentation available at */
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/* http://www.netlib.org/lapack/explore-html/ */
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/* Definition: */
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/* =========== */
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/* DOUBLE PRECISION FUNCTION DCABS1(Z) */
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/* .. Scalar Arguments .. */
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/* COMPLEX*16 Z */
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/* .. */
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/* .. */
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/* > \par Purpose: */
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/* ============= */
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/* > */
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/* > \verbatim */
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/* > */
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/* > DCABS1 computes |Re(.)| + |Im(.)| of a double complex number */
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/* > \endverbatim */
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/* Arguments: */
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/* ========== */
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/* > \param[in] Z */
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/* > \verbatim */
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/* > Z is COMPLEX*16 */
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/* > \endverbatim */
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/* Authors: */
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/* ======== */
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/* > \author Univ. of Tennessee */
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/* > \author Univ. of California Berkeley */
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/* > \author Univ. of Colorado Denver */
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/* > \author NAG Ltd. */
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/* > \ingroup double_blas_level1 */
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/* ===================================================================== */
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doublereal dcabs1_(doublecomplex *z__)
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{
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/* System generated locals */
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doublereal ret_val, d__1, d__2;
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/* Builtin functions */
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double d_imag(doublecomplex *);
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/* -- Reference BLAS level1 routine -- */
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/* -- Reference BLAS is a software package provided by Univ. of Tennessee, -- */
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/* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- */
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/* .. Scalar Arguments .. */
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/* .. */
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/* .. */
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/* ===================================================================== */
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/* .. Intrinsic Functions .. */
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ret_val = (d__1 = z__->r, abs(d__1)) + (d__2 = d_imag(z__), abs(d__2));
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return ret_val;
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/* End of DCABS1 */
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} /* dcabs1_ */
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#ifdef __cplusplus
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}
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#endif
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