Dbx 1024 User's Guide download pdf (Page 59)

Determining the Scope of Variables

(the default), then C type keywords are treated as dbx keywords; if

$ctypenames is set to 0, they are not.

Case Sensitivity in Variable Names

Whether or not dbx is case sensitive when it evaluates program variable

names depends on the value of the dbx variable $casesense.

If $casesense is 2 (the default), then the language in which the variable was

deﬁned is taken into account (for example, C and C++ are case sensitive

while Pascal and Fortran are not). If$casesense is 1, case is always checked. If

$casesense is 0, case is always ignored. Note that ﬁle (module) names are

always case sensitive since they represent UNIX ﬁlenames.

Determining the Scope of Variables

The which command allows you to determine the scope of variables. This

command is useful for programs that have multiple variables with the same

name occurring in different scopes.

The which command prints the fully qualiﬁed name of the active version of

a speciﬁed variable. For example, to determine the scope of the variable i,

enter:

(dbx) which i

.foo.foo2.i

In the example above, the variable i that is currently active is local to the

procedurefoo2 that appears in the module foo (corresponding to the ﬁle foo.c

in a C language program).

Displaying Type Declarations

Thewhatis command displays the type declaration for a speciﬁed variable or

procedure in your program.

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Dbx 1024 User's Guide Page 59