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validity_reason

geometry_overlay::validity

Function validity_reason 

Source 
pub fn validity_reason<G>(geometry: &G) -> &'static str
where
    G: Geometry,
    G::Kind: ValidityStrategyForKind,
    <G::Kind as ValidityStrategyForKind>::S: ValidityStrategy<G>,
Expand description

Return Boost’s human-readable reason for strict validation.

This is the allocation-free Rust counterpart to the string-output overload driven by policies/is_valid/failing_reason_policy.hpp.