Does Ruby perform Tail Call Optimization?

Question

Functional languages lead to use of recursion to solve a lot of problems, and therefore many of them perform Tail Call Optimization (TCO). TCO causes calls to a function fro

Answer 1

TCO can also be compiled in by tweaking a couple variables in vm_opts.h before compiling: https://github.com/ruby/ruby/blob/trunk/vm_opts.h#L21

// vm_opts.h
#define OPT_TRACE_INSTRUCTION        0    // default 1
#define OPT_TAILCALL_OPTIMIZATION    1    // default 0