share/fftpack5/fortran/sinqmi.f

   1 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
   2 C
   3 C   FFTPACK 5.0
   4 C
   5 C   Authors:  Paul N. Swarztrauber and Richard A. Valent
   6 C
   7 C   $Id$
   8 C
   9 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
  10
  11       SUBROUTINE SINQMI (N, WSAVE, LENSAV, IER)
  12       INTEGER    N, LENSAV, IER
  13       REAL       WSAVE(LENSAV)
  14 C
  15       IER = 0
  16 C
  17       IF (LENSAV .LT. 2*N + INT(LOG(REAL(N))/LOG(2.)) +4) THEN
  18         IER = 2
  19         CALL XERFFT ('SINQMI', 3)
  20         GO TO 300
  21       ENDIF
  22 C
  23       CALL COSQMI (N, WSAVE, LENSAV, IER1)
  24       IF (IER1 .NE. 0) THEN
  25         IER = 20
  26         CALL XERFFT ('SINQMI',-5)
  27       ENDIF
  28   300 CONTINUE
  29       RETURN
  30       END