Method operator()

src/bvar/default_variables.cpp:182–184

class ProcStatReader {
public:
    bool operator()(ProcStat* stat) const {
        return read_proc_status(*stat);
    }
    template <typename T, size_t offset>
    static T get_field(void*) {
        return *(T*)((char*)&CachedReader<ProcStat>::get_value(