panoc-stop-crit.hpp

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#pragma once
 
#include <ostream>
#include <stdexcept>
 
namespace pa {
 
enum class PANOCStopCrit {
    ApproxKKT = 0,     
    ProjGradNorm,     
    ProjGradUnitNorm, 
    FPRNorm,          
};
 
inline const char *enum_name(PANOCStopCrit s) {
    switch (s) {
        case PANOCStopCrit::ApproxKKT: return "ApproxKKT";
        case PANOCStopCrit::ProjGradNorm: return "ProjGradNorm";
        case PANOCStopCrit::ProjGradUnitNorm: return "ProjGradUnitNorm";
        case PANOCStopCrit::FPRNorm: return "FPRNorm";
    }
    throw std::out_of_range("invalid value for pa::PANOCStopCrit");
}
 
inline std::ostream &operator<<(std::ostream &os, PANOCStopCrit s) {
    return os << enum_name(s);
}
 
} // namespace pa