ezffti - initializes the array WSAVE, which is used in both EZFFTF and EZFFTB.
SUBROUTINE EZFFTI(N, WSAVE) INTEGER N REAL WSAVE(*) SUBROUTINE EZFFTI_64(N, WSAVE) INTEGER*8 N REAL WSAVE(*) F95 INTERFACE SUBROUTINE EZFFTI(N, WSAVE) INTEGER :: N REAL, DIMENSION(:) :: WSAVE SUBROUTINE EZFFTI_64(N, WSAVE) INTEGER(8) :: N REAL, DIMENSION(:) :: WSAVE C INTERFACE #include <sunperf.h> void ezffti(int n, float *wsave); void ezffti_64(long n, float *wsave);
Oracle Solaris Studio Performance Library ezffti(3P) NAME ezffti - initializes the array WSAVE, which is used in both EZFFTF and EZFFTB. SYNOPSIS SUBROUTINE EZFFTI(N, WSAVE) INTEGER N REAL WSAVE(*) SUBROUTINE EZFFTI_64(N, WSAVE) INTEGER*8 N REAL WSAVE(*) F95 INTERFACE SUBROUTINE EZFFTI(N, WSAVE) INTEGER :: N REAL, DIMENSION(:) :: WSAVE SUBROUTINE EZFFTI_64(N, WSAVE) INTEGER(8) :: N REAL, DIMENSION(:) :: WSAVE C INTERFACE #include <sunperf.h> void ezffti(int n, float *wsave); void ezffti_64(long n, float *wsave); ARGUMENTS N (input) Length of the sequence to be transformed. N >= 0. WSAVE (input/output) On entry, an array with a dimension of at least (3 * N + 15). The same work array can be used for both EZFFTF and EZFFTB as long as N remains unchanged. Different WSAVE arrays are required for different values of N. This initialization does not have to be repeated between calls to EZFFTF or EZFFTB as long as N and WSAVE remain unchanged, thus subsequent trans- forms can be obtained faster than the first. 7 Nov 2015 ezffti(3P)