pub fn raise_cycle_guard_activate(floor: usize)Expand description
Raise the cycle-guard activation floor for the current (thread-local) gullet,
only ever upward. Called from graphics package bindings (pgf/tikz/xy) whose
healthy expansion runs to 100M+ tokens — see CYCLE_GUARD_ACTIVATE_GRAPHICS.
Idempotent and order-independent: loading several graphics packages just
re-asserts the same floor. The per-conversion reset (initialize_gullet)
restores the default so the raise does not leak across documents.