-:removing noreturn to silence a warning
-#ifdef _MSC_VER
-Ap |char* |screaminstr |NN SV *bigstr|NN SV *littlestr|I32 start_shift \
- |I32 end_shift|NN I32 *old_posp|I32 last
-#else
-Apr |char* |screaminstr |NN SV *bigstr|NN SV *littlestr|I32 start_shift \
- |I32 end_shift|NN I32 *old_posp|I32 last
-#endif