cl-user> (let ((context (com.informatimago.languages.cpp:cpp-e
                         "/usr/include/limits.h"
                         :defines '("__x86_64__"  "1")
                         :include-bracket-directories '("/usr/include/"
                                                        "/usr/include/x86_64-linux-gnu/")
                         :write-sharp-line t)))
           	(com.informatimago.languages.cpp::integer-value
             (first (com.informatimago.languages.cpp::macro-definition-expansion
                     (com.informatimago.languages.cpp:environment-macro-definition
                      (com.informatimago.languages.cpp::context-environment context)
                      	"UCHAR_MAX")))))
; Warning: Definining a system macro named "__x86_64__"
; While executing: #<standard-method com.informatimago.languages.cpp::cpp-warning (null t)>, in process repl-thread(15).
/usr/include/x86_64-linux-gnu/bits/wordsize.h:4: warning: Redefining the macro __WORDSIZE with a different definition
/usr/include/x86_64-linux-gnu/bits/wordsize.h:12: warning: Redefining the macro __WORDSIZE_TIME64_COMPAT32 with a different definition
/usr/include/x86_64-linux-gnu/bits/wordsize.h:14: warning: Redefining the macro __SYSCALL_WORDSIZE with a different definition

255
cl-user>