gsl_cblas__source_scal_c_s.h 1009 B

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  1. /* blas/source_scal_c_s.h
  2. *
  3. * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman
  4. *
  5. * This program is free software; you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License as published by
  7. * the Free Software Foundation; either version 3 of the License, or (at
  8. * your option) any later version.
  9. *
  10. * This program is distributed in the hope that it will be useful, but
  11. * WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13. * General Public License for more details.
  14. *
  15. * You should have received a copy of the GNU General Public License
  16. * along with this program; if not, write to the Free Software
  17. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18. */
  19. {
  20. INDEX i;
  21. INDEX ix;
  22. if (incX <= 0) {
  23. return;
  24. }
  25. ix = OFFSET(N, incX);
  26. for (i = 0; i < N; i++) {
  27. REAL(X, ix) *= alpha;
  28. IMAG(X, ix) *= alpha;
  29. ix += incX;
  30. }
  31. }