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#include <cstdint>
 
constexpr uint32_t ticksPerSecond = 100000;
 
struct timemeasure {
    constexpr explicit timemeasure(uint64_t c) : ticks(c) { }
    uint64_t ticks;
    constexpr timemeasure() : ticks(0) { }
};
 
struct time : timemeasure {
    static volatile time now;
 
    constexpr time() : timemeasure() { }
    explicit time(uint64_t c) : timemeasure(c) { }
 
    // Needed for `x = time::now`
    explicit time(const volatile time &t) : timemeasure(t.ticks) { }
    time& operator=(volatile time t) { ticks = t.ticks; return *this; }
};
 
inline time foo(const time& t) { return time(t.ticks + 1); }
 

prog.cpp: In function ‘time foo(const time&)’:
prog.cpp:22:57: error: no matching function for call to ‘time::time(time)’
prog.cpp:22:57: note: candidate is:
prog.cpp:14:15: note: constexpr time::time()
prog.cpp:14:15: note:   candidate expects 0 arguments, 1 provided

Standard output is empty