Man Pages in libffcall1-dev

Section 3: Library calls

avcall.3

Build a c argument list incrementally and call a c function on it.

callback.3

Closures with variable arguments as first-class c functions

trampoline.3

Closures as first-class c functions

trampoline_r.3

Closures as first-class c functions

vacall.3

C functions called with variable arguments