http://llvm.org/bugs/show_bug.cgi?id=14602
Bug #: 14602
Summary: expr command should allow casting variables for
assignment
Product: lldb
Version: unspecified
Platform: Macintosh
OS/Version: MacOS X
Status: NEW
Severity: enhancement
Priority: P
Component: All Bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
I'm trying to poke a private AppKit global variable for testing within my app.
The following command fails:
(lldb) expr __NSStringDrawingShouldAdjustBounds = 1
error: read-only variable is not assignable
error: 1 errors parsing expression
...because lldb has given __NSStringDrawingShouldAdjustBounds the type `void
*const`.
So then I tried this:
(lldb) expr (int)__NSStringDrawingShouldAdjustBounds = 1
error: cast from pointer to smaller type 'int' loses information
error: 1 errors parsing expression
...which isn't what I expected, but okay. This should work:
(lldb) expr (void *)__NSStringDrawingShouldAdjustBounds = 1
error: assignment to cast is illegal, lvalue casts are not supported
error: 1 errors parsing expression
I expected this to work, but it's a gdb-ism. Can lldb do the right thing here
too?
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