sanitize.hpp

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#pragma once
 
// Scalar recovery shared by recursive FDN stages. This stays independent of
// any particular filter topology so delay, diffusion, and envelope code do not
// acquire a biquad dependency merely to stop NaN/Inf propagation.
 
#include <cmath>
 
namespace pulp::signal::fdn {
 
template <typename T>
inline T finite_or_zero(T value) {
    return std::isfinite(static_cast<double>(value)) ? value : T{0};
}
 
}  // namespace pulp::signal::fdn