unused variable '__crv'

[Macintron]

Compiling with Xcode 11 results in this error (7 times):

/obfy/main.cpp:27:5: error: unused variable '__crv' [-Werror,-Wunused-variable]
    OBF_BEGIN
    ^
In file included from /obfy/main.cpp:9:
/obfy/instr.h:816:40: note: expanded from macro 'OBF_BEGIN'
#define OBF_BEGIN try { obf::next_step __crv = obf::next_step::ns_done; std::shared_ptr<obf::base_rvholder> __rvlocal;
                                       ^
/obfy/main.cpp:36:2: error: unused variable '__crv' [-Werror,-Wunused-variable]
        OBF_BEGIN
        ^

cmake automatically created the -Werror when creating the Xcode project with cmake -GXcode ..

Should be easy to fix: insert an 'unused expression' for __crv:
#define OBF_BEGIN try { obf::next_step __crv = obf::next_step::ns_done; std::shared_ptr<obf::base_rvholder> __rvlocal; (void)__crv;
or
#define OBF_END (void)__crv; } catch(std::shared_ptr<...
wherever it makes more sense.

[fritzone]

That actually happens only if you have an empty bodied

OBF_BEGIN
OBF_END

obfuscation block, but regardless I added a (void)__crv; in the OBF_BEGIN to not to have this issue creeping up again.

[Macintron]

Yep, FOR, WHILE, REPEAT etc. commands use the __crv.
This is (was) a perfectionist issue which is for those with highest warning levels enabled.
Anyway, thanks for fixing this to make this project even more perfect.