common: switch to nullptr for sysctl's empty new value
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@ -40,16 +40,16 @@ static MemoryInfo Detect() {
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// hw and vm are defined in sysctl.h
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// https://github.com/apple/darwin-xnu/blob/master/bsd/sys/sysctl.h#L471
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// sysctlbyname(const char *, void *, size_t *, void *, size_t);
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sysctlbyname("hw.memsize", &ramsize, &sizeof_ramsize, NULL, 0);
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sysctlbyname("vm.swapusage", &vmusage, &sizeof_vmusage, NULL, 0);
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sysctlbyname("hw.memsize", &ramsize, &sizeof_ramsize, nullptr, 0);
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sysctlbyname("vm.swapusage", &vmusage, &sizeof_vmusage, nullptr, 0);
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mem_info.TotalPhysicalMemory = ramsize;
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mem_info.TotalSwapMemory = vmusage.xsu_total;
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#elif defined(__FreeBSD__)
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u_long physmem, swap_total;
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std::size_t sizeof_u_long = sizeof(u_long);
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// sysctlbyname(const char *, void *, size_t *, const void *, size_t);
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sysctlbyname("hw.physmem", &physmem, &sizeof_u_long, NULL, 0);
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sysctlbyname("vm.swap_total", &swap_total, &sizeof_u_long, NULL, 0);
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sysctlbyname("hw.physmem", &physmem, &sizeof_u_long, nullptr, 0);
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sysctlbyname("vm.swap_total", &swap_total, &sizeof_u_long, nullptr, 0);
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mem_info.TotalPhysicalMemory = physmem;
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mem_info.TotalSwapMemory = swap_total;
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#elif defined(__linux__)
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