Description

The declarations can be: COMPLEX, COMPLEX*8, COMPLEX*16, or COMPLEX*32. Specifying the size is nonstandard. @

COMPLEX

For a declaration such as COMPLEX W, the variable W is usually two REAL*4 elements contiguous in memory, interpreted as a complex number.

If you do not specify the size, a default size is used.

The default size for a declaration such as COMPLEX W can be altered by compiling with any of the options -dbl, -r8, or -xtypemap. See the discussion in Chapter 2 for details.

COMPLEX*8 @

For a declaration such as COMPLEX*8 W, the variable W is always two REAL*4 elements contiguous in memory, interpreted as a complex number.

COMPLEX*16 @

For a declaration such as COMPLEX*16 W, W is always two REAL*8 elements contiguous in memory, interpreted as a double-width complex number.

COMPLEX*32 @

(SPARC only) For a declaration such as COMPLEX*32 W, the variable W is always two REAL*16 elements contiguous in memory, interpreted as a quadruple-width complex number.