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Changing a Variable’s Data Type
Figure 201: Displaying a
Union
debugging executables with no debugging symbol table information. The
following table describes the built-in types:
Type String Language Size Description
$address C void* Void pointer (address).
$char C char Character.
$character Fortran character Character.
$code C architecturedependent
Machine instructions.
The size used is the number of
bytes required to hold the
shortest instruction for your
computer.
$complex Fortran complex Single-precision floating-point
complex number.
The complex types contain a
real part and an imaginary part,
which are both of type real.
$complex_8 Fortran complex*8 A real*4-precision floatingpoint
complex number.
The complex*8 types contain a
real part and an imaginary part,
which are both of type real*4.
$complex_16 Fortran complex*16 A real*8-precision floatingpoint
complex number.
The complex*16 types contain a
real part and an imaginary part,
which are both of type real*8.
$double C double Double-precision floating-point
number.
$double_precision Fortran double precision Double-precision floating-point
number.
316 Chapter 14: Examining and Changing Data