unexplained domain error

   appr
140330696192320
   sdl_getrendereroutputsize appr;(,_1);(,_1)
┌─┬───────────────┬────┬───┐
│0│140330696192320│1024│768│
└─┴───────────────┴────┴───┘
   'foo bar'=.2 }. sdl_getrendereroutputsize appr;(,_1);(,_1)
   foo
1024
   bar
768
   '/usr/local/lib/libSDL2.dylib SDL_CreateRGBSurface > x i i i i i i i i' cd 0;1024;768;32;16bff0000;16bff00;16bff;16bff000000
140330716926128
   '/usr/local/lib/libSDL2.dylib SDL_CreateRGBSurface > x i i i i i i i i' cd 0;foo;bar;32;16bff0000;16bff00;16bff;16bff000000
|domain error: cd
|   '/usr/local/lib/libSDL2.dylib SDL_CreateRGBSurface > x i i i i i i i i'    cd 0;foo;bar;32;16711680;65280;255;4278190080
   cder''
6 1
   3!:0 foo
4
   3!:0 bar
4
   3!:0 rw
4
   3!:0 rh
4
   (3!:0) 1024
4