4.6 Fortran Based Variables
Fortran (at least, the Sun and SGI dialects of FORTRAN-77) has a feature
which allows allocating arrays with
malloc, but which avoids
blurring the line between arrays and pointers the way that C does. In
stabs such a variable uses the b symbol descriptor.
For example, the Fortran declarations
real foo, foo10(10), foo10_5(10,5) pointer (foop, foo) pointer (foo10p, foo10) pointer (foo105p, foo10_5)
produce the stabs
foo:b6 foo10:bar3;1;10;6 foo10_5:bar3;1;5;ar3;1;10;6
In this example,
real is type 6 and type 3 is an integral type
which is the type of the subscripts of the array (probably
The b symbol descriptor is like V in that it denotes a
statically allocated symbol whose scope is local to a function; see
See Statics. The value of the symbol, instead of being the address
of the variable itself, is the address of a pointer to that variable.
So in the above example, the value of the
foo stab is the address
of a pointer to a real, the value of the
foo10 stab is the
address of a pointer to a 10-element array of reals, and the value of
foo10_5 stab is the address of a pointer to a 5-element array
of 10-element arrays of reals.